The present invention relates to an image projection apparatus. An object of the present invention is to provide an image projection apparatus capable of cooling a light-emitting portion of a light source even if the apparatus is miniaturized. A body case (14) is provided with a suction side surface having a right side metal plate portion (14e) with a suction port and an exhaust side side surface having an exhaust port and opposite to the suction side surface. An optical engine section (100) is arranged on the suction side of the body case, and a light source is disposed on the exhaust side so as to irradiate light toward the suction side. And an air flow path is provided in which air is taken into the body case from the exhaust side of the reflector of the light source and flows toward the suction side to the light emitting portion disposed in the reflector.