A vacuum cleaner is provided. The vacuum cleaner includes a main body, a suction nozzle coupled to the main body to draw in particle laden air, and a dust collecting assembly detachably coupled to the main body and including a dust collecting container that has a dust collecting space formed therein. Particle laden air is drawn in through a polluted air inlet, and particle free air is discharged through a clean air outlet of the dust collecting container. The main body includes a dust collecting assembly receiving groove that receives the dust collecting assembly, and a clean air inlet is provided on an inner wall of the dust collecting assembly receiving groove, facing the dust collecting assembly. The clean air inlet is in communication with an outlet of the dust collecting assembly through which particle free air is discharged from the dust collecting assembly.