The present invention relates to a cyclone dust collecting device and a dust collecting method using the same. The present invention is a dust collecting gas containing dust is introduced into the interior space, and a dust collector formed with a plurality of slits cut in the longitudinal direction on the wall surface; A dust collecting housing in which the dust collecting body is provided, and the dust collecting body is provided inward or apart; A discharge unit provided to discharge the gas from which dust is removed by being inserted into the dust collecting body at a predetermined depth; And a voltage applying unit provided to form an electric field in the dust collecting housing, wherein the dust is collected and removed on the inner wall of the dust collecting body by the electric force according to the electric field application in addition to the centrifugal force and inertial force according to the turning flow, or after passing through the slit. By being removed from the inside of the dust collecting housing, a cyclone dust collecting device and a dust collecting method using the same are provided, which feature a lower pressure loss and a higher dust collecting efficiency compared to a conventional cyclone.
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