**IDEA #3:**
You can also try making a cheap 5-gallon bucket Air conditioner. Check out this video here: [https://www.youtube.com/watch?v=HxSLbpAwibg][1]

**IDEA #2:**
Now that you added the fact there's no window in the room I have another idea. How about you move the computer outside of the room and just run a longer cable under the door to connect your monitor. That way, the computer won't make the room hotter. You can also use wireless keyboard/mouse or get cheap USB extension cables. All the cables you would need can be purchased for cheap online.


**OLD IDEA #1:**
You can do something like this image below. Basically, you get some ducting from a hardware store (shouldn't cost too much) and then re-route your computer's exhaust  fan to go straight out the window instead of blowing the hot air into the small room. 

![Ducting to blow computer's hot air straight out the window][2]


  [1]: https://www.youtube.com/watch?v=HxSLbpAwibg
  [2]: https://i.sstatic.net/kLcTd.jpg