Multifunctional fire-fighting control valve

The utility model relates to a multifunctional fire-fighting control valve matched with fire-fighting systems of large-scale engineering buildings, such as high-rise buildings, public places of entertainment and public facilitates, which comprises a check valve, wherein the check valve comprises two flanges which are integrated with a valve body, and a connecting shaft which is fixed in the valve body and is in the clearance connection with a valve plate, further comprises inlet and outlet water flow pressure gauzes which are respectively installed on the two flanges, a water flow indicator arranged on the upper portion of the valve body, and an interface for connecting an alarm device arranged on the side of the intermediate portion of the valve body. The multifunctional fire-fighting control valve has the beneficial effects that the check valve is used as a body, the multifunction of pipeline reflux protection, inlet and outlet water flow pressure display, water flow indication and warning and the like can