Potato harvesting machine

The utility model relates to agricultural machinery, in particular to a potato harvesting machine matched with a four-wheel tractor for use. A clutch is connected with a main driving sprocket through a driving shaft, the main driving sprocket is connected with a conveying roller driving sprocket, conveying rollers are fixed at two inner sides of a left side plate and a right side plate, shaft ends of the conveying rollers are connected with the conveying roller driving sprocket, a left baffle plate and a right baffle plate are fixedly articulated at the inner sides of the left side plate and the right side plate through baffle plate pin shafts, regulating handles of the left baffle plate and the right baffle plate are connected with the baffle plate pin shafts through brake cables, and a digging shovel is fixed below the front end of a rack through a digging shovel fixing frame at the inner side. The potato harvesting machine has the following beneficial effects as the potato harvesting machine adopts the con