The invention relates to an anti-blocking cylindrical raw coal bunker. The anti-blocking cylindrical raw coal bunker comprises a bunker body, a feed inlet, a bunker bottom, an internal circular cone, a drive device, an unloading arm and a vibration motor, wherein the bunker body is cylindrical and arranged vertically; the feed inlet is located in the center of the top of the raw coal bunker; a discharge outlet is formed in the center of the bunker bottom; the internal circular cone is arranged inside the bunker body, and the center axis of the internal circular cone coincides with the center axis of the bunker body; the drive device is located on the outer side of the bunker bottom and connected with the bottom face of the internal circular cone through a rotating shaft; the unloading arm is located at the bottom end inside the bunker body, the bottom of the unloading arm is attached to the bunker bottom, one end of the unloading arm is installed on the rotating shaft, and the other end of the unloading arm is attached to the inner wall of the bunker body; the rotating shaft drives the unloading arm to rotate around the axis; and the vibration motor is arranged on the outer side face of the bunker bottom. The invention further relates to a discharge method of the anti-blocking cylindrical raw coal bunker. By means of the anti-blocking cylindrical raw coal bunker, the coal blocking phenomenon of a raw coal bunker is avoided, and the project cost is greatly reduced.