The utility model relates to a cement stock bin with a blockage convenient to clear. The cement stock bin comprises a stock bin body (3), a conical hopper (2) and a discharge pipe (1) and is characterized in that a set of discharging ports (5) is formed in the conical hopper, a seal frame (6) is arranged on the outer sides of the discharging ports, the two sides of the seal frame are respectively provided with a limiting groove (7), bolts (10) and nuts (11) spirally matched with the bolts (10) are arranged between the limiting grooves, a drawing plate (4) is arranged on the seal frame, one face of the drawing plate is matched with the seal frame in a sealing mode, and the other face and the two side edges of the drawing plate are matched with the limiting grooves, the bolts (10) and the nuts (11) respectively; a material return hopper (8) is arranged on the lower side and connected with the discharge pipe (1) through a material return pipe (9). By the adoption of the technical scheme, materials are discharged faster when the stock bin is blocked, and the cement stock bin has the advantages of being easy to operate, reliable in seal, good in blockage removing effect and the like.