Soil sampling device

The utility model discloses a soil sampling device which comprises an impact cylinder, an impact head is integrally arranged at the bottom end of the impact cylinder, a plurality of arc-shaped lugs are integrally arranged at the top end of the impact cylinder, the arc-shaped lugs are distributed in an annular array mode, a clamping groove opening is formed between every two adjacent arc-shaped lugs, and the clamping groove openings are communicated with the impact cylinder. Pin holes penetrate through the surfaces of the arc-shaped lugs. According to the utility model, through the buckling structure of the hammering block and the impact cylinder, the plurality of clamping blocks are correspondingly clamped into the plurality of clamping notches, then the hammer head is used for hammering the top of the hammering block, the impact cylinder is sunk into a soil layer through the impact head and continuously goes deep, after the thickness is collected, the hammering block is pulled out, and then the pin rod is in