Engine air intake device and construction machine incorporated with the same

Two air cleaners 20A, 20B are disposed on a horizontal plane in a state that air inlets 24, 24 are directed in an upward direction and an axial directions of the air cleaners 20A, 20B are aligned in parallel to each other. An air intake duct 21 for drawing in external air is disposed to overlap the air cleaners 20A, 20B in the upward direction. The air intake duct 21 is connected to the air inlets 24, 24 of the air cleaners 20A, 20B. A merging chamber S1 for supplying airs filtered through the air cleaners 20A, 20B to an engine is disposed along a direction orthogonal to the axial directions of the air cleaners 20A, 20B. The air cleaners 20A, 20B and a merging member 22 are attached to a common attachment member 26.