Efficient and energy-saving sewage denitrification equipment

The utility model relates to the technical field of sewage denitrification, and discloses efficient and energy-saving sewage denitrification equipment which comprises a swivel shell, a shell supporting base is fixedly assembled at the bottom of the swivel shell, an energy supply motor is fixedly assembled at the bottom of the swivel shell, a sewage inlet is formed in the outer wall of the swivel shell, and a sewage outlet is formed in the outer wall of the swivel shell. The efficient and energy-saving sewage denitrification equipment comprises a rotating ring shell, an equipment cover plate is arranged at the top of the rotating ring shell, a rotating ring fan is arranged at the top of the equipment cover plate, a sewage pumping and replacing pump is arranged at the top of the equipment cover plate, and a pump machine supporting seat is fixedly assembled at the top of the equipment cover plate. The coil-shaped aeration pipe is arranged on the equipment, so that the working efficiency of the aeration pipe is i