Cooling structure for construction machines

In a construction machine having a frame;

• an engine mounted on said frame in an engine compartment, said engine including a rotatable fan to draw ambient air over a radiator to cool fluid circulated therethrough, said ambient air being discharged from said radiator through a cover member forming an upper portion of said engine compartment, the improvement comprising:
• exhaust ports formed in a portion of said engine cover above a front portion of said engine;
• a first guide positioned radially outside said fan for guiding the ambient air just after having passed said fan;
• a second guide positioned above the front portion of said engine for guiding the ambient air discharged through said exhaust ports, said second guide having a distal end positioned lower than said first guide, said exhaust ports being each positioned between the distal end of said second guide and a distal end of said first guide across which the ambient air flows;
• and
• wherein a recess is formed in the portion of said engine cover above the front portion of said engine, said exhaust ports are formed in a slope of said recess on the same side of the engine cover as said fan, and an opposite slope of said recess serves as said second guide.