Soil sampling device for geological exploration

The invention relates to the technical field of geological exploration, and discloses a soil sampling device for geological exploration, the soil sampling device comprises a bottom plate, the top of the bottom plate is fixedly connected with two opposite telescopic rods, the size of the telescopic rods is matched with the distance between the bottom plate and a limiting block, one end of each telescopic rod far away from the bottom plate is fixedly connected with the limiting block, and the limiting block is fixedly connected with the bottom plate. The size of the limiting block is matched with the length of the positioning rod, and the positioning rod is hinged to one end in the limiting block; according to the soil sampling device for geological exploration, a worker places the device on the ground, at the moment, an external second motor is started, a reamer rotates under the action of the motor, meanwhile, a drill bit starts to rotate, at the moment, an external first motor is started, and a positioning r