Patent ID: 7594943

Claim:
A cyclone dust separating apparatus for separating dust from external air drawn in thereto and discharging clean air, comprising: at least one first cyclone body having a tubular shape and forming a first cyclone chamber where the external air is rotated; at least one second cyclone body forming a second cyclone chamber where the air discharged from the first cyclone chamber is rotated again to separate dust, wherein the at least one second cyclone body comprises a plurality of second cyclone bodies annularly arranged around the first cyclone chamber, wherein the external air is drawn in through a lower end of the first cyclone chamber and discharged through an upper end of the first cyclone chamber, and the air discharged from the first cyclone chamber is drawn in through an upper end of the second cyclone chamber and discharged through the upper end of the second cyclone chamber; a first inlet penetrating a lower end of the first cyclone body to draw the external air into the first cyclone chamber; a discharge pipe extended from the upper end of the first cyclone chamber toward the lower end of the second cyclone chamber to be partially inserted in the first cyclone chamber and having a first outlet for discharging the air cleaned by the first cyclone chamber; a first dust discharge port formed at an upper part of an outer circumference thereof to discharge the dust separated by the first cyclone chamber; and a first dust collection chamber collecting the dust discharged through the first dust discharge port, wherein the first outlet is disposed lower than the first dust discharge port.