Novel energy-saving noise-reducing fan

The invention belongs to the technical field of filtering equipment, and discloses a novel energy-saving noise-reducing fan. The impeller module is fixed in the case through the bearing seats, each bearing seat is provided with one water inlet and one water return port, meanwhile, the water inlets, the water return ports and the water tank are connected into a whole through the pipelines, the surface air cooler and the axial flow fan are arranged in the water tank, and water in the surface air cooler is cooled through the axial flow fan; through the structural arrangement, cooling water can becooled all the time through the axial flow fan, meanwhile, the oiling cup is installed at the top of the bearing seat, the interior of the bearing seat can be lubricated, the structural design is simple and novel, use is convenient, waste of an external cooling water source can be avoided, and the lubricity of the interior of the bearing seat can be improved through use of the oiling cup; noise can be effectively reduced