Vacuum cleaner with dust visualization device

The object of the present invention is to provide a vacuum cleaner for resolving the problem of dust that is jammed between the components of a dust visualization device in the dust visualization device of the vacuum cleaner so that air flow in the dust visualization device may be kept smooth. In order to achieve this object, a vacuum cleaner with a dust visualization device according to the present invention comprises: a suction nozzle; and the dust visualization device provided to the suction nozzle so as to accumulate dust sucked by the suction nozzle. The dust visualization device includes: an air-dust separating member provided at one side of the suction nozzle, and having an opening section for discharging dust and air, and an air flow hole provided separately from the opening section for the flow of air; a housing section for receiving the dust separating member; and an air guide device rotatively provided to the housing section for selectively guiding air outside the housing section to the inside of the housing.