| 摘要 |
PURPOSE: A multiple cyclone dust collecting device is provided to enhance a dust collecting efficiency of a vacuum cleaner by performing a dust collecting operation on a number of times. CONSTITUTION: A multiple cyclone dust collecting device is composed of three cylindrical cyclone bodies having a different size respectively. The multiple cyclone dust collecting device comprises a first cyclone body(10) having the largest diameter, a second cyclone body(20) communicated with an inside of the first cyclone body and having a middle diameter, a third cyclone body(30) communicated with the inside of the second cyclone body and having the smallest diameter, an air discharging pipe(5) communicated with the third cyclone body, and a dust collecting portion(40). An air intake pipe(50) is connected to one end outer circumference surface of the first cyclone body, and a foreign material discharging port is formed at the other outer circumferential surface and communicates with the dust collecting portion by a first connecting pipe.
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