| 摘要 |
A cyclone separation device (20), a surface cleaning device (100), a dust collector, and a method for separating dust from dust-containing air by using the cyclone separation device (20). The cyclone separation device (20) comprises: a first cyclone (201) having a first longitudinal axis; a plurality of second cyclones (202), located downstream from the first cyclone (201) and arranged in parallel connection in the circumferential direction of the first longitudinal axis, the second cyclones (202) being integrally accommodated in the first cyclone (201); an air intake passage (203), at least partially accommodated in the first cyclone (201); and a guiding passage (204), communicated with the air intake passage (203) and the first cyclone (201), a fluid led in through the air intake passage (203) being tangentially guided into the first cyclone (201) through the guiding passage (204). |
