PROBLEM TO BE SOLVED: To install an air compressor and a capture filter for fine particles in exhaust gas, which are installed in a work vehicle such as a combine-harvester, around an engine compactly and integrally.SOLUTION: A work vehicle comprises a compressor 19 disposed on one side of an engine 12 and driven by power from the engine 12. The compressor 19 is provided close to the engine 12. A capture filter 21 for capturing fine solid matters included in exhaust gas exhausted from the engine 12 is provided in the periphery of the engine 12 on the side where the compressor 19 is disposed. A transmission mechanism 40 for transmitting the power from the engine 12 to the compressor 19 is provided in the periphery of the engine 12 on the side where the compressor 19 is installed. The compressor 19 is supported in a movably adjustable way in a direction of transmitting power to the compressor 19 by the transmission mechanism 40.
