Viscous material drying cylinder with material returning structure

The utility model discloses a viscous material drying cylinder with a material returning structure, which comprises a head cover, a tail cover, a feeding mechanism, a three-layer cylinder body and a power device, the head cover is arranged at the feeding end of the three-layer cylinder body, the tail cover is arranged at the discharging end of the three-layer cylinder body, the feeding mechanism is arranged on the head cover, the power device is connected with the three-layer cylinder body, and the three-layer cylinder body is connected with the feeding mechanism. The three-layer barrel is used for driving the three-layer barrel to rotate, the three-layer barrel comprises an inner barrel, a middle barrel and an outer barrel, the inner barrel, the middle barrel and the outer barrel are sequentially sleeved, and materials enter from the inner barrel, pass through the middle barrel and are discharged from the outer barrel; a rear cone is arranged at the discharging end of the middle cylinder and is used for assi