Rotary kiln device with automatic crust treatment function

The utility model provides a rotary kiln device with an automatic crust processing function, which relates to the technical field of rotary kilns and comprises a driving base and a rotary kiln body arranged above the driving base, a rotary kiln tail body is arranged at the tail end of the rotary kiln body, and a cover body is arranged at one end of the rotary kiln tail body. A mounting groove is formed in the center of the cover body, a cleaning rod is detachably arranged in the mounting groove and is a telescopic rod, the outer end of the cleaning rod is driven by a motor, a supporting plate is telescopically arranged on the outer wall of the inner end of the cleaning rod, and a first cleaning plate and a second cleaning plate are arranged on the supporting plate. The first cleaning plate and the supporting plate are fixedly assembled, and the side, close to the first cleaning plate, of the second cleaning plate is connected with the first cleaning plate in an assembled mode through a rotating shaft. Accordi