ENGINE ROOM FOR CONSTRUCTION MACHINE AND CONSTRUCTION MACHINE

PROBLEM TO BE SOLVED: To improve cooling performance of an engine room by uniforming distribution of a flow speed of cooling air passing through a heat exchanger, and preventing reverse flow high-temperature air from infiltrating in the heat exchanger so as to improve its efficiency. SOLUTION: When an engine 3 is driven, a fan 4 is rotated, cooling air flows in a route as shown by an arrow mark in the drawing, and cooling of an engine room 100 is performed. That is, cooling air sucked from an air suction port 7 is immediately introduced to a heat exchanger 5, heat is radiated, thereafter the cooling air is delivered to an engine room 1 by the fan 4. Fan delivery air cools the engine 3 and the inside of the engine room 1, to be released to the atmosphere from an air discharge port 8. The heat exchanger 5 is mounted so as to come into contact with the air suction port 7 provided in a ceiling 9 of a front surface cover chamber 2, and a refrigerant, operating oil, etc., flow in a heat transfer pipe provided in the inside of the heat exchanger 5.