Rotary drum drying machine for vacuum dry box

The utility model relates to the technical proposal of a rotary drum drying machine for a vacuum dry box. When drying quality has higher requirements, drying devices of the existing laboratories and small experiments can not meet the requirements. The rotary drum drying machine for vacuum dry box comprises a dry box body, a vacuum negative-pressure interface, a heater and a relay. The utility model is characterized in that a rotary drum is arranged in the box body, and a horizontal shaft of the rotary drum passes through the box body to be movably sealed with the box body. The utility model can directly dry amorphous slices; after the amorphous slices are dried, the water content of the amorphous slices is about 30 ppm, the amorphous slices have uniform drying performances and less powder content, and meanwhile, the utility model shortens drying period and raises drying quality and efficiency.