Originally Posted by
brp1264
Make a bee-line for the immigration queue immediately upon entering the terminal. Clear immigration, grab your bag, go to the other terminal, and check-in there. . . Okay, enough venting... suffice to say, just clear immigration and be done with it.
I couldn't agree more. I once made the mistake of transiting through T2 and said never again.
Four hours should be enough for the OP to exit and transfer, although of course this assumes that he is eligible for visa-on-arrival or has a multi-entry visa to the UAE.