An engine room for construction equipment is provided, which can minimize emission of noise generated in an engine room due to driving of an engine and a ventilating fan to an outside of the engine room by absorbing the noise through a noise trap, and can improve the cooling performance of corresponding components by smoothing inhalation/discharge of an external air to/from the airtight engine room. The engine room for construction equipment includes a radiator cooling water for cooling the engine, a muffler discharging an exhaust gas from an engine to the atmosphere, a first noise trap installed in an inlet port to absorb noise generated in the engine room and emitted to an outside, a second noise trap installed in an outlet port to absorb the noise generated in the engine room and emitted to the outside, a radiator fan inhaling the external air through the first noise trap and making the inhaled external air pass through the radiator and the circumference of the engine, a discharge fan discharging the air in the engine room to the outside through the second noise trap, and an outer wall forming an airtight space for accommodating therein the engine, the muffler, the radiator fan, the hydraulic pump, and the discharge fan that generate the noise.