The invention discloses a diesel engine base capable of decreasing temperature and removing impurities. The diesel engine base comprises a diesel engine base body. A filtering disc is mounted at the top end of the diesel engine base body and fixedly connected with the diesel engine base body; a linkage stirring disc is mounted at the top of the filtering disc; and a plurality of clamping connection blocks which are uniformly distributed are mounted at the top end of the diesel engine base body. The diesel engine base capable of decreasing temperature and removing impurities is provided with the linkage stirring disc, and the linkage stirring disc performs stirring through working rotation residual force of a diesel engine, so that the rotation residual force of the diesel engine is reasonably utilized, the energy loss of the diesel engine base capable of decreasing temperature and removing impurities is effectively reduced, and the using cost is reduced; and a heat dissipation device is mounted and can dissipate heat of the diesel engine while the diesel engine base capable of decreasing temperature and removing impurities fixes the diesel engine, and the protection effect on the diesel engine through the diesel engine base capable of decreasing temperature and removing impurities is improved advantageously.