Exhaust fans on the bottom of the case?

[ArmorSuperiority]

Hello,
I know that most people used bottom case fans as intake, but i would like to use them as exhaust fans instead to remove dirt inside the computer.
I own a Corsair Vengeance C70: http://www.corsair.com/en/vengeance-c70-mid-tower-gaming-case-arctic-white
Please tell me if there are any issues regarding my idea. I believe that bottom exhaust fans can remove a great amount of dust and make cleaning easier!
Thank you for your replies

 

[O_Pgamer96]

No...
Convection forces hot air upwards and pushing air down will make dust settle quicker. People have tried it wont work. Just dont do it.

 

[i7Baby]

Dust follows the air flow - in from the front, bottom and sides and out to the rear and top.

You also need to blow your case out every few months.