The utility model provides a fire-fighting
water supply device capable of adjusting
water pressure, which relates to the technical field of
water supply equipment and comprises a base, a
frequency conversion control cabinet is arranged on one side of the base, a display screen is arranged on one side of the
frequency conversion control cabinet, and a protective device is arranged on one side, close to the display screen, of the
frequency conversion control cabinet. A pump
machine is arranged on one side of the base, a water inlet
pipe is arranged on one side of the pump
machine, a heat preservation device for intercepting external
cold air is arranged on one side of the water inlet
pipe, a pressure measuring device is arranged on one side of the pump
machine, and a water outlet
pipe is arranged on one side of the pump machine. The temperature of the surface of the water inlet pipe can be increased, external
cold air can be intercepted, the situation that
cold air invades the water inlet pipe, a
water source in the water inlet pipe is frozen, the interior of the water inlet pipe is blocked, and normal
water supply is affected is reduced, and the heat preservation performance of the water inlet pipe and the working efficiency in
cold weather are improved.