Water-saving agricultural planting greenhouse

The utility model relates to the technical field of planting greenhouses, in particular to a water-saving agricultural planting greenhouse which comprises a greenhouse body, water collecting tanks are embedded in the left side and the right side of the ground in the greenhouse body, water receiving tanks are fixedly connected to the upper side of the left end and the upper side of the right end of the greenhouse, and the water receiving tanks are communicated with the interiors of the water collecting tanks through water pipes. A filtering assembly is installed on the water passing pipe, a baffle is fixedly connected to the side end of the water collecting tank, a plurality of drainage pipes are installed on the baffle, first valves are installed on the drainage pipes, a cleaning assembly used for cleaning the interior of the water collecting tank is installed in the greenhouse body, the cleaning assembly comprises a fixing plate, and a convex groove is formed in the side end of the fixing plate. A convex pla