An image projecting apparatus includes a main body casing comprising an inlet provided to a lower part thereof, and an outlet spaced from the inlet. A heat generating part generates heat in an inner part of the main body casing. A cooling duct coupled to the main body casing communicates with the inlet and the outlet, and has a channel guiding cooling air drawn in through the inlet to the heat generating part and accommodates the heat generating part therein. Thus, an image projecting apparatus is provided having a simplified cooling configuration for cooling a heat generating part, thereby improving cooling efficiency, and substantially reducing noise and costs.