Provide is a construction machine allowing an air cleaner to be located entirely low while securing dust-discharge function thereof, with no risk of adverse effects such as diffusion of dusts and complication in structure. The construction machine includes an engine and an air cleaner connected to an intake-side portion of the engine to filter intake air. The air cleaner includes an air-cleaner main body which filters the intake air and an evacuator which discharges dusts separated from the intake air and protrudes downward beyond the air-cleaner main body. The air-cleaner main body is placed on an air-cleaner placement surface, the evacuator protruding downward beyond the air-cleaner placement surface at a position deviated outward from the air-cleaner placement surface.