I think my boyfriend is lying to me
What is your boyfriend lying to you about?
He told me he's looking for a new job, but I know he has no potential here.
Your boyfriend shouldn't lie to  you about getting a job. You should gently confront him and discuss why he isn't being honest with you.  talking about it openly will help build trust in the relationship.
I don't care as long as he brings home the money
Your boyfriend isn't going to bring home any money if he isn't looking for a job though. Help him look and give him some suggestions. Get him motivated to find a new job and the sooner he finds one, the better off you two will be.