Combiner suitable for soil sampling and positioning

The utility model discloses a combiner suitable for soil sampling and positioning, and belongs to the technical field of soil collecting devices. The combiner suitable for soil sampling and positioning comprises a fixing support and further comprises a threaded rod, the threaded rod is connected to the fixing support in a sliding mode, one end of the threaded rod is fixedly connected with a rotating ring, and scale marks are arranged on the threaded rod; the soil sampling head is connected to the threaded rod, the soil sampling head is hollow, a connecting rod is fixedly connected into the soil sampling head, and a soil inlet is formed in the soil sampling end of the soil sampling head; through the arrangement of the piston device and the plug, the soil sampling head is plugged, external soil is prevented from entering the soil sampling head when the soil sampling head does not reach an area, and meanwhile, after the soil sampling head reaches the area, the piston device is contracted through the air escape v