I am very sure that you will be off load again by immigration people. They were strictly instructed not to allow any filipino to go out of the country holding visit visa or business visa to avoid problem in the future. Why don't you just ask your father to send family visit visa which is more safer compare to business visa. This is more acceptable to immigration authorities and less problem because they know that you will be with your father and he will be the one to shoulder all the expenses while you are staying here in Qatar...This is just my advice dude!