Direct-current and dry-wet dual-purpose fan and scrubber shell structure

The utility model discloses a direct current and dry and wet dual-purpose fan and scrubber shell structure which comprises an upper support and a machine shell, a stator assembly and a rotor assembly are sequentially arranged in an inner cavity of the machine shell, and the rotor assembly is connected with a fixed impeller located at the lower end of the machine shell, an oil seal chamber and an oil seal. The beneficial effects of the utility model are that the matching part of the upper support and the casing is sealed by a rubber ring or sealant; turnup screw holes in the bottom of the machine shell and the fixed impeller are matched and pre-installed, a groove is formed in the matching face and can be filled with a rubber ring or sealant, and the two parts are fixed through screws. An inner hole in the lower end of the fixed impeller is linked with the outer diameter of the oil seal and is in interference fit with the oil seal to avoid the risk of water leakage of the fan; different from the conventional u