Preheat air fryer to 350° according to manufacturer's directions.

Unroll crescent roll dough; separate dough into 4 rectangles. Press perforations together. Gently press or roll to make 4 (8x4-inch each) rectangles. Cut each rectangle crosswise into 4 (4x2-inch each) rectangles.

Unwrap candy bars. Place each in center of small dough rectangle. Bring up sides of dough to completely enclose candy; pinch together edges to seal.

Place cinnamon-sugar in small dish. Lightly spray tops of dough-wrapped candies with nonstick spray; dip tops in cinnamon-sugar to coat.

Line bottom of air fryer basket with foil. Spray with nonstick spray. Working in batches, place dough-wrapped candies with cinnamon-sugar sides up. Air-fry 5 to 6 minutes or until golden brown. Remove from air fryer. Repeat with remaining wrapped candies.

To serve, lightly sprinkle with powdered sugar and insert lollipop sticks, if desired. Serve warm.