Patent ID: 7381234

Claim:
A dust collecting apparatus which is detachably coupling with a vacuum cleaner, comprising: a dust canister body, a part of which becomes an exposed side exposed outside a cleaner body upon mounting in the cleaner body, and which comprises a first dust separating chamber for separating large-sized dirt from air flowed in through an inlet port formed at one side thereof by using inertia and gravity, and a second dust separating chamber, which is isolated from the first dust separating chamber, for collecting fine dust from the air passing through the first dust separating chamber; a cyclone body having a cyclone chamber which is in fluid communication with the first dust separating chamber and separates the fine dust from the air passing through the first dust separating chamber by using centrifugal force generated when the air is rotated; and an outlet pipe which is protruded from a lower surface of the cyclone body to an upper side of the cyclone chamber, wherein at least a part of the exposed side of the dust canister body is made of a transparent material so as to simultaneously see through the first and second dust separating chambers, and at least a part of the cyclone body is made of the transparent material to see through the cyclone body, and wherein the first dust separating chamber is provided with an inertia blocking plate which is arranged at a position corresponding to the inlet port of the dust canister body so that the dirt flowed through the inlet port in the first dust separating chamber collides with the inertia blocking plate.