Preheat air fryer to 400degrees. Spritz air fryer basket with cooking spray. On a lightly floured surface, unroll pizza crust dough and pat into a 12-in. square. Cut into four squares. Layer one slice of the cheese and a fourth of the sauerkraut and corned beef diagonally over half of each square to within 1/2 in. of edges. Fold one corner over filling to the opposite corner, forming a triangle; press edges with a fork to seal. Place two calzones in a single layer in greased air fryer basket., Cook until calzones are golden brown, 8-12 minutes, flipping halfway through cooking. Remove and keep warm; repeat with remaining calzones. Serve with salad dressing.