Mine soil sampler

The utility model discloses a mine soil sampler which comprises a spiral drill bit, the outer side of the spiral drill bit is connected with a sliding sleeve, the outer side of the sliding sleeve is connected with a connecting rod, the bottom of the connecting rod is connected with a protective shell, the bottom of the protective shell is connected with a rotary foot support, and a hollow gear is fixedly installed on the spiral drill bit. And the hollow gear is connected with a transmission gear, the transmission gear is connected with a servo motor, the servo motor is arranged on the outer top face of the shell, and a push rod is arranged in the spiral drill bit. According to the mine soil sampler, when the injection needle main body is stored, the injection needle main body is positioned through clamping connection with the positioning block, and meanwhile, a needle on the injection needle main body is connected with the first storage groove, so that the needle is prevented from being exposed to be in conta