The utility model relates to a reinforced concrete silo convenient to unload, including funnel, discharge apparatus and feed opening, the funnel include the funnel body, the funnel body above the opening establish to circular, now the opening is established to square, circular above be provided with ring shape roof beam suitable for reading marginal on the opening, following opening on be providedwith square feed opening edge roof beam, ring shape roof beam lower part suitable for reading marginal is equipped with the outer support, funnel end opening bottom be provided with the feed opening,the feed opening on be connected with discharge apparatus, discharge apparatus bottom be equipped with the inner support, the outer support with the inner support fix subaerial. Furthermore, discharge apparatus for activation vibration discharge apparatus. A reinforced concrete silo convenient to unload, convenient to use can reduce the limited storage capacity's of silo a difficult problem, it is too fast to have avoided the silo cross -section to receive shrinkage rate simultaneously, avoids the silo funnel to appear and unloads smooth, storage and block up the disadvantage.