A hydraulic excavator includes an engine hood covering an engine from above and a vent member disposed inside the engine hood. The engine hood includes a third side plate. The third side plate is provided with a lower side vent hole group, and simultaneously, a region located laterally to the lower side vent hole group is imperforate. The vent member covers the lower side vent hole group with a first opening from inside. A second opening of the vent member communicates with an interior of the engine hood. The vent member upwardly tilts toward the engine hood.