Vacuum drum dryer

The vacuum drum drying machine comprises a base, a supporting frame, a vacuum box, a vacuum cover and a rotating rod, the surface of the base is connected with the supporting frame in a welding mode, the supporting frame is fixedly connected with the vacuum box, the vacuum box is connected with the vacuum cover through bolts, a first groove hole is formed in the middle of the vacuum cover, and a second groove hole is formed in the middle of the vacuum cover. A rotating rod is inserted into the first groove hole, a baffle is connected to the surface of the rotating rod in a welded mode, a scraper is fixedly connected to the surface of the baffle, the baffle is fixedly connected to the surface of the rotating rod, wet materials are dried, the drying space of the wet materials can be enlarged through the baffle, the wet materials can be better dried, and the working efficiency is improved; and the scraper is arranged on the surface of the baffle, the problem that wet materials adhere to the inner wall of the vac