Soundproof type engine driven work machine

A soundproof type engine driven work machine including an engine having an engine fan, a work machine unit driven by the engine, a radiator, a charge cooler and mufflers communicated to the engine, a soundproof casing to accommodate the aforementioned apparatuses in the casing, the soundproof type engine driven work machine further comprising:

• a soundproof casing is partitioned into an engine room, a muffler room and a radiator room,
• the engine room accommodates the engine, the work machine unit and an air intake aperture,
• the muffler room accommodates the muffler and an air exhaust aperture,
• the radiator room accommodates the radiator and an air intake aperture,
• the radiator room and the muffler room are communicated,
• an electric fan is provided between the air intake aperture of the radiator room and the radiator, further,
• an air flow duct to communicate said engine room and said muffler room, the engine fan being provided directly opposite to an entrance of said air flow duct, and the charge cooler is provided in said air flow duct.