Lift-adjustable alfalfa residual grass collecting device

The utility model belongs to the technical field of agricultural equipment, and discloses an off-ground adjustable alfalfa residual grass collecting device which comprises a fixing frame, a connecting plate is fixedly installed at the left end of the fixing frame, a grass raking plate is fixedly installed on the bottom face of the fixing frame, and a connecting frame is fixedly installed at the right end of the top face of the fixing frame. Two rows of semicircular steel needles are fixedly installed on the top face of the connecting frame, and fixing pipe sleeves are fixedly installed at the left ends of the front side face and the rear side face of the fixing frame. The ten positioning holes are formed in the surface of the supporting rod at the intervals of 5 cm, after the fixing bolts are screwed away from the positioning holes, positioning of the fixing bolts between the fixing pipe sleeve and the supporting rod is lost, the supporting rod can move up and down in the fixing pipe sleeve, and therefore the