Self-cleaning recovery device of horizontal dryer

The utility model discloses a self-cleaning recovery device of a horizontal dryer. The self-cleaning recovery device comprises a conveying chain and a chain wheel assembly, wherein the conveying chain is connected onto two sides of a conveying mesh belt of the horizontal dryer and moves in a rotational way along an upper guide rail and a lower guide rail, the chain wheel assembly is used for driving the conveying chain, the conveying chain is provided with a cleaning mechanism provided with a cross shaft vertical to the moving direction of the conveying chain, two ends of the cross shaft are connected onto the conveying chain on two sides, a shaft body of the cross shaft is provided with a cross connecting plate, a plurality of rows of U-shaped scrapers are arranged in parallel below the cross connecting plate, every two adjacent rows of U-shaped scrapers are dislocated and arranged in a overlaid way, each row of U-shaped scraper is connected with a hinged shaft penetrating into upper and lower ends on the si