Robot cleaner, automatic exhaust station and robot cleaner system having the same

A robot cleaner (1) provided with a shutter (11,12) to open or close an inlet of a dust box (5) when the dust box (5) is separated from a body (4) of the robot cleaner (1) . Another robot cleaner, which docks with an automatic exhaust station (2), is also disclosed, together with the automatic exhaust station (2). The latter robot cleaner includes a shutter (111) to be automatically opened by air discharged from the automatic exhaust station (2) in a docked state of the robot cleaner to exhaust dust from the dust box (115), in order to allow even heavy dust to be easily exhausted.