PURPOSE: To provide a compact air cleaner placed on a pachinko machine or a pachinko machine island which sucks smoke of tobacco or cigarette rising up from pachinko players, so that air in a pachinko game hall is cleaned.

CONSTITUTION: Above a louver 5 protruding from an upper surface of a pachinko machine, a first suction duct 7, a filter 9 and a second suction duct 11 are piled up in this order to form a pyramid. A fan 15 having a cylindrical vane is pivoted by a motor 13 which is provided on the second suction duct 11, so that air in a pachinko game hall is discharged outside the hall through a discharge port 20.