A vacuum cleaner is provided to reduce a noise by bending an intake channel to guide air to a ventilation fan unit and a discharging channel to guide the air discharged at the ventilation fan unit. In a vacuum cleaner, a ventilation fan unit(20) generates a suction force and a ventilation force in the vacuum cleaner. An intake hole is prepared at a rear side of the ventilation fan unit to introduce air. An intake channel(41) guides the air from a front side to a rear side of the ventilation fan unit by bending a middle path thereof in the body. And a discharging channel(42) guides the air discharged from the ventilation fan unit to the front side and guides the air to the rear side again.
