Hi Ruby,
I will answer your questions as best I can.

1. We have all the documents ready marriage cert. etc etc and i shall be landing dubai in mid june, with all these documents ready will she be able to get the visa in 2 weeks ? morover do i need any help(document) from my employer apart from my contract ?

Are you landing in Dubai together? If you are, then when you go through the Passport Control, i think she can be granted a residency visa on the spot.
Only if you were to come seperately, would the process take 2 weeks.
This website has very good information on it;
DNRD





2. Presently we both are away from our home land however working in the same country ... is it possible that i can get her visa issued from dubai by submitting these documents myself at the local consulate and she can get the visa stamp when she reaches home land ?

Hmm. I'm not sure I understand your question.
Where are you working now, and what country is your home land?
I think it should be ok if you submit the documents at your consulate, but I am really not sure. Someone else on the forum may be able to answer that question a bit better than I can.