Chinese yam harvester

The utility model provides a Chinese yam harvester, and relates to the technical field of agricultural equipment. The Chinese yam harvester comprises a traction device, a driving device, a grooving device and a soil loosening device, the traction device comprises a tractor, two traction arms arranged at the tail of the tractor and a core shaft between the two traction arms, one end of the core shaft is provided with a power input wheel, and the middle of the core shaft is provided with a supporting assembly and rotationally connected; the driving device comprises a first driving wheel arranged in the middle of the core shaft, a second driving wheel arranged at the other end of the core shaft and a push-pull rod acting on the supporting assembly. The core shaft can drive the slotting device and the soil loosening device to perform corresponding actions, the supporting assembly and the push-pull rod can switch the slotting/soil loosening function and adjust the slotting/soil loosening depth, the structure is si