Preheat the air-fryer to 400 F. Separate the biscuit dough into biscuits and cut each one in half.
Roll each one into a rope, and form into a knot. In a small bowl, combine melted butter with grated parmesan cheese, salt, garlic powder, dried oregano, and dried parsley.
Brush the butter mixture evenly over the knots. Air-fry in batches for 8-10 minutes.