Double-layer glass multi-span greenhouse

The utility model discloses a double-layer glass multi-span greenhouse, which relates to the related technical field of greenhouses and comprises three groups of glass greenhouses, a group of covering materials is fixedly mounted at the top end of each group of glass greenhouses, a base is fixedly mounted at the bottoms of the three groups of glass greenhouses, and hollow glass is fixedly mounted on the outer walls of four sides of each group of glass greenhouses. The outer walls of the three glass greenhouses are each movably connected with a glass door, the joints of the three glass doors and the three glass greenhouses are each provided with a hinge piece, and the sides, away from the three glass doors, of the outer walls of the three glass greenhouses are each provided with a water tank. A large amount of rainwater can be collected when it rains, the rainwater is pumped and sprayed through the water pump when the glass greenhouse needs to be watered, water resources are saved, a heater is arranged inside,