Portable vacuum cleaner equipped with an acoustic absorption wall

A portable vacuum cleaner comprising:

• a main body including a suction duct, a waste separation and collection device mounted on the main body, and a suction motor housed in the main body, the suction motor having a motor axis and configured to generate an air flow through the suction duct and the waste separation and collection device, the main body further comprising an air exhaust circuit through which the air flow generated by the suction motor is exhausted to an outside of the main body, the air exhaust circuit including a filter configured to filter air flowing through the air exhaust circuit, wherein the filter is substantially cylindrical and includes an internal surface defining an internal chamber fluidly connected to an air discharge orifice of the suction motor, the air exhaust circuit including an acoustic absorption wall extending at least partly into the internal chamber of the filter, the internal surface of the filter and the acoustic absorption wall defining a first air conduit and a second air conduit, each configured to circulate a portion of air flow.