The invention relates to a comprehensive environmental-friendly energy-saving closestool sanitary appliance, a water tank of which is provided with a flushing pool at the upper layer and a warm water pool at the lower layer. The comprehensive environmental-friendly energy-saving closestool sanitary appliance is internally provided with a bath water return coiled pipe and an electric heater; a seat cover is provided with an inner side surface, an outer side surface, an upper cover surface and a bottom surface; one end of a warm water cavity is connected with a warm water outlet through a pipeline and the other end is connected with a warm water return hole through a warm water pipe, a water valve and a miniature water pump; an exhaust cavity consists of a space enclosed by an inner side surface, an outer side surface, a baffle and a bottom surface, a notch at the inner side of the bottom surface is communicated with a space in the closestool, a notch under the exhaust cavity in the front of the seat cover is connected with a suction opening at the front end of the exhaust pipe, and the rear part of the exhaust pipe is fixedly connected with a drainage pipe of the closestool; brushes are arranged at two sides of a water scraping plate, the rear end of the water scraping plate is connected with the front end of a helical shaft, and the helical shaft is arranged in a cleaning pipe. The invention has the advantages of scientific design, compact structure, complete function and stronger practicability, and is suitable for families, mechanisms, enterprises and institutions.