Pat the chicken legs dry with paper towels and place them in a bowl.
Drizzle olive oil over the chicken legs.
Sprinkle garlic powder, smoked paprika, salt, and pepper evenly over the legs. Toss to coat well.
Place chicken legs in the air fryer basket in a single layer, leaving space around each leg for even crisping.
Cook at 380°F (190°C) for 25 minutes, flipping halfway through, until golden and cooked through.
Let the chicken legs rest for a few minutes before serving.