Impurity removing and air drying cylinder for soil detection

The utility model discloses an impurity-removing air-drying cylinder for soil detection, which comprises a cylinder body, and further comprises a feed port, an air-drying cylinder body, an air-drying cylinder cover, an air-drying cylinder cover, an air-drying cylinder cover, an air-drying cylinder cover and an air-drying cylinder cover, the crushing assembly is arranged in the cylinder body and communicates with the bottom of the feeding opening; the air drying assembly is arranged on the lower side of the crushing assembly and communicates with the crushing assembly; the collecting barrel is arranged on the lower side of the air drying assembly and communicates with the air drying assembly; the centrifugal assembly is arranged in the collecting barrel; the collecting tank is inserted into the bottom of the barrel body and corresponds to one side, extending out of the barrel body, of the collecting barrel; a soil sample is firstly crushed, then the crushed soil is stirred through an air blower of the air dryi