Automatic discharging mine car

The utility model discloses an automatic discharging mine car comprising a walking chassis, a workbin is arranged on the walking chassis, whole body of the workbin is in a cuboid shape, a bottom of the workbin inclines along a motion direction of the walking chassis, an end of the workbin with small depth is provided with a cylinder, inside of the cylinder is connected with the workbin, a bottom of the workbin is provided with a spiral conveyor, two ends of the spiral conveyor are respectively arranged on a side wall of the workbin and an end face of the cylinder, and an end portion of the cylinder is provided with a discharge hatch. The automatic discharging mine car employs the spiral conveyor in the mine car workbin, powder, granular material or mixture of the powder and the granular material in the mine car is relay conveyed to an adjacent mine car or is automatically discharged to other equipment, the material needs not to be discharged and transshipped, intermediate links are minimized, efficiency is im