I want to create 2 IR emitter send 2 DATA on arduion pro mini
More details, please. If you send different data from two emitters at the same time the signals are likely to interfere with each other. If you send at different times, why use separate emitters?
If they are physically separated - using baffles etc...
You may consider using a common IR carrier (e.g. 38/40 KHz), and carefully modulating the two streams in an interleaved method.
No delay() or anything nasty like that - just tight code to do the two data streams - should be quite do-able with a 16MHz Arduino... depending on what else it's doing!