Potato multifunctional cultivator

The utility model discloses a potato multi-functional cultivator. A sub-soiling plough is fixedly connected at the bottom of a stand, a land wheel is connected with the stand through a wheel axle, a ridge surface mulching film cutting knife is arranged at the bottom of a support between the sub-soiling plough and the land wheel, a soil ridging wheel is connected at the bottom of a stand at the front end of the land wheel through a connecting rod, a clean-up scraper is arranged at the bottom of the tail end of the stand, a fertilizer box is arranged at the upper part of the stand, a fertilizer discharging tube is arranged at the bottom of the fertilizer box, a fertilizer adjusting disc is arranged at the connecting point between the fertilizer box and the fertilizer discharging tube, and the fertilizer adjusting disc is connected with the rotating axle of the land wheel through a chain. By adopting the potato multi-functional cultivator, because the stand, the fertilizer box, the land wheel and the sub-soiling