Automatic soil core retreating device for rock core pipe of exploration drilling machine

The utility model relates to the technical field of soil exploration, in particular to an automatic soil core retreating device for a rock core tube of an exploration drilling machine, which comprises a machine body, a rocking handle is arranged outside the machine body, the outer surface of the rocking handle is connected with an insertion seat, a movable mechanism is inserted into the insertion seat, and the movable mechanism is connected with a rock core tube of the exploration drilling machine. A scraping mechanism is mounted on the outer surface of the movable mechanism, and a mounting table is arranged in the machine body. Through arrangement of a connecting rod, a threaded seat, a threaded lead screw and a clamping mechanism, after a rock core pipe body is clamped in the clamping mechanism, the connecting rod can perform connection rotation through rotation of a rocking handle, then the threaded lead screw can perform rotation operation, and at the moment, the threaded lead screw performs rotation cont