The invention relates to an indoor intelligent efficient air purifier. The indoor intelligent efficient air purifier is composed of a case body, an air inflating pipeline and a detection mechanism, wherein the case body is a square barrel-shaped or cylinder-shaped closed container, and the case body is filled with liquid; the case body is divided into three parts which do not communicate by two partitions (4), an air outlet (9) is formed in the top of the case body, and a sewage outlet (11) is formed in the bottom of the case body; an air inlet pipeline (3), an air backflow pipeline (5) and an air outlet pipeline (6) are vertically arranged in the case body, air inlets and air outlets are respectively formed in the three pipelines, the air inlets are formed in the upper ends of the pipelines on one side of the partitions and are on the liquid level, and the air outlets are respectively arranged at the bottoms of the pipelines on the other sides of the partitions; and a plurality of layers of bubble crushing nets (2) are arranged in the case body in parallel. The device has high cleaning effects on smoke, various kinds of harmful gas and small particles, and PM2.5 particles, bacteria and viruses are removed; the indoor intelligent efficient air purifier has the advantages of convenience in installation, simple structure, low cost, high efficiency and long service life.