Below I quoted the bible, where is mentioned that there is a place from which condemned humans cannot return to the living. Sounds like some prison to me. So if someone say to me that Hell ain't real I am not sure what you believe. Also, bible also writes satan is imprisoned for a 1000 years, then released. Inmagine, if you share the same place with satan for 1000 years. I guess human can be evil, but sharing your place for 1000 years with someone who is most evil.... this is going to be a torture!
Luke 16:19–31,
New International Version:
“ 19“There was a rich man who was dressed in purple and fine linen and lived in luxury every day. 20At his gate was laid a beggar named Lazarus, covered with sores 21and longing to eat what fell from the rich man’s table. Even the dogs came and licked his sores.
22“The time came when the beggar died and the angels carried him to Abraham’s side. The rich man also died and was buried. 23In Hades, where he was in torment, he looked up and saw Abraham far away, with Lazarus by his side. 24So he called to him, ‘Father Abraham, have pity on me and send Lazarus to dip the tip of his finger in water and cool my tongue, because I am in agony in this fire.’
25“But Abraham replied, ‘Son, remember that in your lifetime you received your good things, while Lazarus received bad things, but now he is comforted here and you are in agony. 26And besides all this, between us and you a great chasm has been set in place, so that those who want to go from here to you cannot, nor can anyone cross over from there to us.’
27“He answered, ‘Then I beg you, father, send Lazarus to my family, 28for I have five brothers. Let him warn them, so that they will not also come to this place of torment.’
29“Abraham replied, ‘They have Moses and the Prophets; let them listen to them.’
30“‘No, father Abraham,’ he said, ‘but if someone from the dead goes to them, they will repent.’
31“He said to him, ‘If they do not listen to Moses and the Prophets, they will not be convinced even if someone rises from the dead.’”
What I learnt and this may be quite liberating to some, hell does not exist in the sense that many of us have understood it to be. Hell in Christendom as perceived by many is a very bad interpretation of Bible scripture. This whole doctrine of eternal torment in hell came from the dark ages and is a contorted version of influenced Greek mythology, and made popular through art and poetry like Dante's Inferno and some Christian sermons like "Sinners in the hands of an angry God."
In the Bible there is no such place. Satan is not the ruler of hell like Hades is the ruler of the underworld. It does speak of a "bottomless pit" (Revelation 9:1), but this refers to a place where God had chained the fallen angels reserved for judgement day. (Jude 6; Genesis 6:2). Hell in the Bible is depicted rather as a punishment that will come upon the wicked; And that punishment, the Bible gives us an example of what this punishment would be from what God did to Sodom and Gomorrah as God rained fire and brimstone from heaven onto the earth. (Genesis 19:24; Revelation 20:9).
The wicked will be judged and punished by hellfire and will die, not be tortured forever. I'd encourage you to read this good article on how hell became eternal:
The Salvation Conspiracy: How Hell Became Eternal
What Does Jesus Mean by 'Their Worm Does Not Die' (Mark 9:44, 46, 48)?