The invention relates to the technical field of sewage treatment and discloses efficient and environment-friendly sewage purifying equipment. The efficient and environment-friendly sewage purifying equipment comprises a sewage tank and is characterized in that support rods are fixedly connected to the four corners of the upper surface of the sewage tank, a filter tank is fixedly connected to the top ends of the support rods, waste gas treatment equipment is arranged at the top of the right side of the filter tank, and a motor is fixedly mounted at the center of the right side of the sewage tank. The efficient and environment-friendly sewage purifying equipment has the advantages that by a first gas pump coordinated with a combustion chamber, a drying chamber, a filter chamber, an oxygen pipe, an oxygen tank, an exhaust pipe, a first pipeline, a second pipeline, a third pipeline, a combustion platform and an activated carbon filter layer, waste gas in a reaction process can be treated; by a second gas pump coordinated with a gas inlet pipe, an aeration tank and aeration holes, aeration inside the filter tank can be achieved, purifying efficiency and effect can be increased, fast sewage treatment and a good sewage treatment effect are achieved, and air pollution is avoided.