Geological survey sampler

The utility model discloses a geological survey sampler, which relates to the sampler field and comprises a homocentric-square-shaped bottom plate, a mounting plate is arranged above the bottom plate, a driving mechanism used for driving the mounting plate to move up and down is arranged on the bottom plate, a second motor is arranged on the top surface of the mounting plate, and the second motor is arranged on the bottom surface of the mounting plate. A sampling pipe is mounted on a power output shaft of the second motor, the sampling pipe is rotatably connected with the mounting plate, a push plate is slidably connected in the sampling pipe, two connecting plates are mounted on the push plate, and the connecting plates penetrate through a through groove formed in the side face of the sampling pipe and are slidably connected with the through groove. According to the utility model, through the arrangement of the chute, the push plate and the connecting plates, after sampling is completed, the push plate is dr