Careers in the AF where you will teach kids in other countries english as a career - None.
There is a scholarship out there (someone help me, I forget the name) where graduating college seniors are selected to go to a foreign country to do just this. I would assume AFA grads could apply to that; however, it wouldn't be a career, it would be a couple years.
Remember, you are applying to the military. The military isn't made for that type of job. If that's what you'd like to do you might want to consider the Peace Corps or any number of other opportunities out there.