House indoor air treatment system

The invention discloses a house indoor air treatment system, comprising an air decomposition and replacement room, wherein the main body of the air decomposition and replacement room is of a submergence type, and the air decomposition and replacement room is arranged by matching a house room and is used for replacing indoor contaminated air of the house room by clean air; at least one air extractor and at least one air screener are arranged between the air decomposition and replacement room and the house room, the at least one air extractor is used for carrying out air replacement between the house room and the air decomposition and replacement room, and the at least one air screener is used for carrying out purification treatment on the indoor contaminated air of the house room. The house indoor air treatment system disclosed by the invention can overcome the defects that the quality of indoor air is poor, the quality of life of people is influenced, serious secondary pollution and poor environment friendliness are caused by once purification measure and the like in prior art, so as to realize the advantages that the quality of the indoor air is good, the quality of life of people is improved, no secondary pollution exits and the environment friendliness is good.