Multi cyclone vessel dust collecting apparatus for vacuum cleaner

Claim 1

A multi cyclone vessel dust collecting apparatus for separating and collecting contaminants from an air by a centrifugal force, comprising: a first cyclone vessel having a suction port and an air discharge port; a plurality of a second cyclone vessels, at least one of which is operatively coupled to the first cyclone vessel; a contaminant collecting unit for collecting contaminants separated from the first cyclone vessel and at least one of the plurality of the second cyclone vessels, wherein the plurality of the second cyclone vessels are arranged to be parallel to each other; and wherein the first cyclone vessel has a suction port, a first cyclone vessel body having a first chamber therein and a first air discharge port configured on a top portion of the first cyclone vessel body, each of a plurality of the second cyclone vessels comprises a second cyclone vessel body having a second chamber in a smaller size than the first chamber, an air suction port configured on a bottom portion of the second cyclone vessel body and connected with the first air discharge port in fluid-communication, and a second air discharge port configured at one side of the second cyclone vessel body, the first cyclone vessel has a upright center axis line such that air is ascended substantially upright and discharged in a rotation movement, and a plurality of the second cyclone vessels are arranged in parallel and have a center axis line perpendicular to that of the first cyclone vessel such that air from each of the first cyclone vessels horizontally flows by a rotation movement and is discharged.