Secondary vortex dust separating cup of vacuum cleaner

The utility model relates to a quadric cyclone type dust-separating cup, which comprises a dust cup, an air outlet arranged on the cup body, an air inlet contacting with the perisporium of the cup body and a separator arranged in the cup body; wherein, the separator is provided with an outer cylinder body connected with a connecting bracket and a shielding can, the perisporium of the outer cylinder body is provided with the air inlet of the separator lower than the air inlet of the dust cup, the center of the outer cylinder body is provided with an inner cylinder body with the same shaft, the upper part of the inner cylinder body and the upside of the air inlet of the separator are provided with air inlets contacting with the perisporium and arranged in rotating equispaced according to a circularity array, the top of the inner cylinder body is connected with the connecting bracket and the bottom is connected with the bottom of the dust cup passing through the shielding can, the inner wall of the inner cylinder is provided with a cone-shaped cylinder body with a bigger upper and a smaller lower. The utility model has the advantages of simple structure, low cost and convenient dumpage and cleaning due to all of the dust through quadric separating falling in the bottom of the dust cup. With an easier structure of the dust cup compared with the prior art, the utility model has the advantages of economizing of manufacturing cost and more remarkable separating effect, in particular to provide a dust cup with excellent performance for the horizontal dust collector.