Novel semi-open type double-suction centrifugal pump

The utility model relates to the field of double-suction centrifugal pumps, in particular to a novel semi-open type double-suction centrifugal pump which comprises a pump body, a shaft sleeve is arranged on one side of a rotating shaft so that force of the rotating shaft can be well transmitted, an impeller is arranged so that liquid needing to be transported can be transmitted through rotation of the impeller, and a motor opening is formed in one side of a motor shell. The noise reduction layer is arranged on the inner wall of the motor shell, noise generated by the rotating motor can be effectively reduced, the fan is arranged on the inner wall of one side of the motor shell, heat dissipation can be conducted on the rotating motor, the base is connected with the upper bottom plate through the first screws, and therefore the motor shell is fixed to the upper bottom plate. The supporting plate is fixed to the upper bottom plate through second screws, so that the pump body is fixed to the upper bottom plate, t