Portable volute type soil drying device

The invention discloses a portable volute type soil drying device which comprises an air suction device, an electric heating device, a rechargeable storage battery assembly, a lining mud storage box and a tower type perforated cover, the air suction device is connected with the electric heating device in an inserted mode, and the rechargeable storage battery assembly is connected with the air suction device and the electric heating device through a wire and a conductive copper sheet. A main volute with a bottom is arranged on the rear section of the electric heating device, the lining mud storage box is installed in the main volute with the bottom, the tower-type perforated cover can be fixed to the lining mud storage box in a covering mode, and a large cover body with a through hole is installed at the position of a volute opening of the main volute with the bottom. The soil sample drying device can rapidly dry collected soil samples in the industries of environment detection, agricultural planting, chemical