A vacuum cleaner provided with a dust separating apparatus which has an improved aesthetic quality and has an increased size without increasing the height of the vacuum cleaner. The dust-separating apparatus is easily detachable with respect to a vacuum cleaner body, and is provided with a cover that is easily detachable when dirt collected in the dust collecting compartment is discarded. The vacuum cleaner includes a first cyclone part and a second cyclone part, and a first dust collecting compartment configured to collect dirt separated from the first cyclone part is formed at a lower side of the first cyclone part and the second cyclone part.