Dust collecting filter of vacuum cleaner and vacuum cleaner having the same

Claim 1

A dust collecting filter of a vacuum cleaner, which is reusable, disposed in a dust collecting chamber in which contaminants entrained in air drawn in through air suction port of the dust collecting filter are separated and collected, the dust collecting filter of a vacuum cleaner comprising: a first case member with an air inlet hole connected through with an air inlet port of the dust collecting chamber, the first case member forming a cylinder and having a plurality of groove portions on the side; a second case member with a plurality of air discharge holes formed on the side for forming paths for discharging air flown in through the air inlet hole, the second case member connected with the first case member to form predetermined space in between the first case member and the second case member, the second case member forming a cylinder and having a plurality of resilient plates with hooks for hooking on the groove portions wherein the first case member and the second case member are selectively separatable; and a contaminant separating device disposed on air discharge path of the predetermined space for separating and collecting contaminants from air passing the air discharge path and being discharged through the air discharge hole, wherein the contaminant separating device comprises a first contaminant separating member initially separating large contaminants and a second contaminant separating member secondarily separating fine contaminants not separated by the first contaminant separating member.