Patent ID: 7883560

Claim:
A dust separating apparatus of a vacuum cleaner, comprising: a housing, a first cyclone separator integrated within the housing, and several second cyclone separators arranged around the first cyclone separator, wherein the second cyclone separators are removably mounted into the housing, and the first cyclone separator and the second cyclone separators respectively have a separate dust receiving cavity and separate dust collecting chambers; wherein said housing comprises an outer cylinder body and an inner cylinder body, which share a common bottom cover and between which a dust receiving cavity is defined, in the inner cylinder body, a cyclonical chamber being arranged and in the upper portion of the inner cylinder body, a dust outlet being arranged, an airflow inlet pipe entering the inner cylinder body through the outer cylinder body, in the middle portion of the inner side of the outer cylinder body, a shelf being arranged, from whose inner edge a middle cylinder body extending upwardly, said second cyclone separator being arranged between the middle cylinder body and the outer cylinder body and standing on said shelf, an upper lid being arranged at the top end of the middle cylinder body and a filter member fixed on the at the top end of the filter member connected through to the second cyclone separators via an air outlet on the upper lid.