Indoor hidden air purifier

The invention provides an indoor hidden air purifier, belongs to the technical field of air purification, and aims to solve the problems of poor purifying effect, direct arrangement on an indoor wall and occupation of large space in the conventional air purifier. The indoor hidden air purifier comprises a shell, wherein an air duct, a motor and a centrifugal impeller connected with a motor revolving shaft are arranged in the shell; the side wall of the shell is provided with an air outlet; one side, which faces the centrifugal impeller, of the shell is provided with an air inlet, and a filter screen assembly is embedded into the air inlet; a hoisting part is arranged on the corner of one side, which is far away from the centrifugal impeller, of the shell; the air duct is arc-shaped, surrounds the outer side of the centrifugal impeller, and forms a ventilation pipeline which is communicated with the air outlet and the air inlet. The indoor hidden air purifier the advantages of good purifying effect and realization of arrangement in a ceiling.