Portable sampling device for soil detection

The utility model discloses a portable sampling device for soil detection, which comprises a main body cylinder, a top plate is mounted at the top of the main body cylinder, and a rotating plate is arranged above the top plate; the threaded rod is arranged at the bottom of the rotating plate, the threaded rod is fixedly connected with the rotating plate, the threaded rod penetrates through the top plate, and the bottom of the threaded rod is connected with a movable block; the sampling barrel is arranged at the bottom of the movable block, a protection frame is installed on the outer side wall of the main barrel, a micro motor is installed in the protection frame, a main gear is arranged at the output end of the right side of the micro motor, and the main gear is connected with the micro motor through a driving shaft; and the air pump is installed in the movable block, the bottom of the air pump is connected with an air outlet pipe, and the air outlet pipe penetrates through the movable block. The portable sa