The present disclosure provides an air cleaner comprising: at least one blowing device comprising a main fan and a first discharge outlet for generating a gas flow,and the air passing through the main fan is discharged through the first discharge outlet; a flow controller movably disposed at a side of the at least one blowing device, the flow controller comprising a sub fan generating an air flow and a discharge grille, wherein the air passing through the sub fan is discharged through the discharge grille; and a display arranged in the discharge grid, the display displaying the operation information. Through the air cleaner, the suction capacity is increased and the air cleanliness of indoor space is improved.