The main things about that style of lifting are the lifts and the reps. Powerlifting revolves around the squat, the deadlift, and the bench press. Your workouts should focus on those lifts. Everything after and around them should be supplemental to those lifts.
Rep wise, you want to stay in the 3-6 range, and around 80% of your one-rep max. Typically 3-5 sets of increasing weight in a session.
There are so many variables you can control that are just lifting common sense. Two powerlifting programs can look very different, but will share those two main principles.