they might allow you to leave doha, but the immigration officials in the philippines might not allow you to leave the philippines if your passport validity's less than six months.

i'm not entirely sure if it takes a lot longer to process here. i got mine in two weeks when i renewed and everything was faster. this is way better than wasting an entire day at the dfa. getting a passport renewed in the philippines takes a lot longer and you'd need to set up an appointment sometimes months ahead. yes it is more expensive here, but are you sure you want to go through hell at the dfa? seriously? but if you're leaving for good then by all means get your passport renewed in manila. or if you're eligible to avail of the courtesy lane.

one option for you would be to get an extension on the validity of your passport. it would be faster