Pouring and cooling integrated device for gray cast iron production and application of pouring and cooling integrated device

The invention discloses a pouring and cooling integrated device for gray cast iron production, which comprises a shell part, a cooling part and a cooling part, the mold assembly is arranged in the shell part, a sprue gate is formed in the mold assembly, and the sprue gate is opposite to the opening in position; the water cooling assembly comprises a water spraying pipe row, a rolling mechanism and a traction mechanism, one end of the water spraying pipe row is connected with the rolling mechanism, the other end of the water spraying pipe row is connected with the traction mechanism, the water spraying pipe row comprises a plurality of water spraying pipes and connecting pieces, the connecting pieces are arranged between every two adjacent water spraying pipes, and the connecting pieces are elastic plastic pieces; after a casting is formed, the drawing mechanism drags the water spraying pipe row to be unfolded above the mold assembly, and the water spraying pipe row is communicated with a water source to spray