Road drainage structure

The utility model relates to the technical field of road construction, and provides a road drainage structure which comprises a road body, a water collecting cavity is formed in the side position of the road body, a water draining groove for rainwater to flow in is formed in the top of the water collecting cavity, and a filter plate is fixedly arranged in the water draining groove; the dirt storage tank is fixedly arranged on the side of the road body, and a dirt scraping mechanism is arranged on the dirt storage tank and used for scraping dirt intercepted by the filter plate into the dirt storage tank for temporary storage; when it rains, rainwater on the road surface of the road body flows into the water collecting cavity through the lower water tank to be stored for subsequent use such as irrigation of green plants, dirt moving along with the rainwater is blocked under the action of the filter plate and is prevented from flowing into the water collecting cavity, and the dirt intercepted by the filter plate