Secondary cyclone dust separating cup of vacuum cleaner

The secondary cyclonic dust separating cup of vacuum cleaner includes one dust cup with air outlet and air inlet, one separator set inside the cup body with one outer barrel connected to the frame and the isolating cover, one inner barrel set coaxially inside the outer barrel and one conic barrel inside the inner barrel. The secondary cyclonic dust separating cup makes the secondarily separated dust fall to the bottom of the cup for easy dumping and cleaning. Compared with available technology, the present invention has the advantages of simple structure, low manufacture cost and high separating effect. The dust separating cup of the present invention with excellent performance is especially suitable for use in horizontal vacuum cleaner.