[Object] To provide an engine device provided with an exhaust-gas purification device and configured so as to enable the engine device itself to be efficiently installed within an engine installation space. [Means of Realizing the Object] A diesel engine 1 includes an exhaust-gas purification device 2 and allows the exhaust-gas purification device 2 to be disposed at the upper face side of the diesel engine 1. The exhaust-gas purification device 2 purifies exhaust gas discharged from the diesel engine 1. The direction of a long side of the exhaust-gas purification device 2 is perpendicular to the direction in which a crankshaft 3, included in the diesel engine 1, extends. An exhaust throttle device 65 is disposed between an exhaust manifold 7, included in the diesel engine 1, and an exhaust gas inlet 36, included in the exhaust-gas purification device 2.