Cyclone separator of vacuum cleaner

The invention discloses a cyclone separator, which comprises the following parts: cylinder, tangent inlet on upper end of cylinder, cylinder roof in connection with rack, short outlet pipe in connection with rack bottom hole in the center of cylinder, concial cylinder in the inner wall of cylinder with lower position than short pipe, dust collecting cavity between concial cylinder bottom and bottom lid, wherein the bottom of concial cylinder possesses baffle bag, whose peripherial wall connects outer wall of concial cylinder through connecting bar; one ring-shaped gap is formed between inner wall of separating bag and outer wall of concial cylinder; the separator is paralleled by multiple individual separators; multiple housing separators are set around separator in the inner wall of dust cup; each short outlet pipe of separator connects rack bottom hole; the separator inlet is set on the bottom lid of separator, which is between ring-shaped lid and cylinder on the lateral side of separator.