All dogs technically can live outside. You can't go around comparing dogs to your children, that's a silly way of making people understand what is wrong and right. It really depends on the personality of the dog and what you mean by "survive outside".
I know many people who's dogs, small and large sleep outside, and they're very very happy dogs. If you have two dogs living together, he should definitely be fine outside assuming you have the right environment for him. Shelter, food, fencing etc etc.
However i hope you do plan on bringing him inside everyday too, say in the evenings and times when you are at home. Dogs want to be with you! They don't want to be separated.