The invention discloses an underground rapid water-filling anti-explosion closed wall which comprises a wall body. A plurality of water-filling bags are filled with water and then mutually stacked to form the wall body, construction time of an existing anti-explosion closed wall is greatly shortened, labor intensity of workers is reduced, safety is improved, and sealing and plugging effect is ideal. The closed wall is reasonable in structure, less in investment and simple to operate, the water-filling bags are filled with water to form the closed wall, working efficiency is improved, cost is reduced, and safety in the disaster rescue process can be effectively ensured.