Dust collecting apparatus for vacuum cleaner

Disclosed is a cyclone dust collecting apparatus (100) for a vacuum cleaner, which includes: a cyclone main body (110) rotating a drawn air flown into a first inlet (123) and discharging; and a guide unit (150) disposed between the first inlet (123) and the cyclone chamber (111), and guiding the drawn air into the cyclone chamber (111), while dispersed into two or more parts, and the guide unit (150) further comprises a plurality of guide paths (167) spirally formed to guide the drawn air flown into the cyclone chamber (111) rotates along the spiral guide paths (167). Accordingly, rotary force of the air flown into the cyclone chamber (111) increases and pressure loss of the vacuum cleaner by the cyclone dust collecting apparatus (100) is minimized.