The superfine compound active adsorbing indoor air purifier is prepared through mixing attapulgite or sea-foam via activation and superfine processing, clay and zeolite in certain proportion, polymerization, pelletizing and stoving, and further mixing with granular active carbon in certain ratio. The air purifier has great specific surface area and rich and complicated molecular pores in the size matching molecules of benzene, toluene, xylene, formaldehyde, ammonia, radioactive radon and other pollutant, so that the harmful molecules are adsorbed in the purifier owing to van der Waals force and the air is purified.