A work vehicle configured such that a diesel particulate collection filter device is mounted on a supporting mechanism provided separately from an engine, and such that differences in vibration between the engine side and the diesel particulate collection filter device side and assembly errors for both can be sufficiently absorbed. This work vehicle comprises the supporting mechanism (17) fixed to a vehicle body frame (2), the diesel particulate collection filter device (45), and a connection pipe (23). The diesel particulate collection filter device (45) has an exhaust gas guiding port (45a) facing the rear and mounted to the supporting mechanism (17) above the engine (15). The connection pipe (23): has one end thereof coupled to a turbo charger (22); has an extension section (54a) below the diesel particulate collection filter device (45), extending from the one end towards the rear of the diesel particulate collection filter device (45); has the other end thereof coupled from the rear to the exhaust gas guiding port (45a) in the diesel particulate collection filter device (45); and has flexible pipe sections (54c, 54d) in the extension section (54a)