assalamu alaykum.. please help me on how can I marry a muslim filipina girl as my second wife here in qatar.

Assalamu alaykum warahmatullahi wa barakatuhu..  I would just like to ask question and seek advice from the people that knowledgeable about life here in qatar.  I am from philippines, and i am a muslim, alhamdulillah. And im currently working here in qatar.

I have a wife in the philippines and one daughter, and unfortunately they cannot come and live here under a family residence visa. And my first wife told me that I can marry another woman but i will just make sure that my purpose of marrying another woman is for the sake of allah.

And my friends here introduced me to a filipina muslim woman, she reverted from christianity into muslim but not practicing, but she claims that she is a muslim.

She is currently living alone and working as a secretary in a construction company. Now, we already chatted on facebook so that I can confirm her life status, and she told me that she wants to have a husband that could guide on how to do the ibadah, such as, salah, wear the hijab and she wants to go to makkah for umrah.

I fear allah so much, I dont want to be tempted by my nafs here in qatar and I dont want to talk to a woman unless she is my mahram, because i know that it would be a big sin to allah.  Therefore, my question is, how can i marry her here in qatar without going to our embassy? because in embassy they wont let me marry unless I present my cert. of no marriage from philippines, and the problem is i have a legal documents from my first wife.

Can I just talk to some imam or alim here in qatar and ask him if he can conduct the nikah for us without going to embassy? and if its possible, is there a certificate they will give to us for the proof that we are married?

Please help me and give me advice..

Thank you so much to those who will answer my question..  jazakumullahu khair.