Garbage drying device

The utility model discloses a garbage drying device. The utility model aims to solve the problems of how to directly separate and recycle light plastic in a garbage drying process and how to fully utilize landfill gas of a garbage landfill. A spiral track is spirally arranged along the inner wall of a barrel body, fixedly connected to the inner wall of the barrel body and used for conveying garbage materials, and a light plastic adsorption channel is formed in the axial center position of the spiral track; a garbage feeding pipe and an exhaust pipe are arranged at the top end of the barrel, a garbage discharging pipe is arranged at the bottom end of the barrel, a discharging port of the garbage feeding pipe right faces a feeding port of the spiral track, and a discharging port of the spiral track is communicated with the garbage discharging pipe at the bottom end of the barrel; the hot air conveying unit supplies hot air into the barrel; the plastic recycling unit is installed on the exhaust pipe and used for