Patent ID: 8728186

Claim:
A cleaner comprising: a body having an intake port configured to take in air and an outtake port configured to discharge air; a dust-separating apparatus detachably mounted on the body and configured to centrifugate dirt from the air taken in; and a fan motor assembly configured to form an intake force used to take in the air, wherein the dust-separating apparatus comprises: an outer case; an inner case having portion disposed inside the outer case; a cover disposed at an opposite side of the inner case with respect to the outer case; and wherein the outer case comprises: a guide passage configured to guide air introduced through the dust-separating apparatus inlet to a rear side; a first cyclone part configured to firstly perform a centrifugation separation on dirt while guiding the air passing through the guide passage to a front side and; a first dust-collecting compartment configured to collect the dirt separated by the first cyclone part; a first purified air exhaust pipe configured to guide the air passing through the first cyclone part to the rear side again; and wherein the inner case comprises: a plurality of second cyclone pipes disposed inside the outer case and configured to secondarily perform a centrifugal separation on dirt while guiding the air passing through the first purified air exhaust pipe to the front side again; and the cover comprises an air inlet connected to the intake port.