Soil sample air drying device

The utility model provides a soil sample air-drying device. The soil sample air-drying device comprises a plurality of trays capable of containing soil samples, the closed housing is provided with an internal accommodating space, the housing comprises a tray outlet and a tray inlet which are communicated with the internal accommodating space, and the tray outlet and the tray inlet are formed in the bottom of the housing; the inserting plate door can seal the tray outlet and the tray inlet; the air inlet and the air outlet are communicated with the internal containing space, the air inlet is located above the tray inlet, and the air outlet is located above the tray outlet; the inner conveying assembly is used for bearing the tray and arranged in the housing, and the two ends of the inner conveying assembly are in butt joint with the tray outlet and the tray inlet respectively; the first conveying unit is arranged outside the housing and is in butt joint with the tray inlet; the second conveying unit is arrange