Patent ID: 7410517

Claim:
A dust separating apparatus for a vacuum cleaner, comprising: a first dust separating unit including a first dust separating unit body having a suction port, a guide member spirally formed within the first dust separating unit body, and at least one main filter to collect dust separated from drawn-in air; a second dust separating unit including a plurality of cyclones annularly arranged along a brim of the first dust separating unit so as to centrifugally separate the dust from the air discharged from the first dust separating unit; and a cover unit connected above the first and the second dust separating units to guide the air discharged from the first and the second dust separating units, wherein the first dust separating unit separates the dust included in drawn-in air by rotating along the guide member and passing through the main filter the air drawn in through the suction port, the second dust separating unit rotates the air discharged from the first dust separating unit, thereby further centrifuging the air, and the cover unit moves the air discharged from the first dust separating unit to the second dust separating unit and discharges to the outside the air discharged from the second dust separating unit.