Transverse tunnel fire-fighting reservoir applied to highway tunnel

The utility model relates to a horizontal tunnel fire-fighting reservoir applied to a highway tunnel. According to the technical scheme, the system comprises a fire-fighting reservoir and a water pump room, the fire-fighting reservoir is arranged in a transverse hole between two roads in a highway tunnel, two water suction pits are formed in the bottom of the fire-fighting reservoir, a fire-fighting pressurizing water pump water inlet pipe is arranged in one water suction pit, and a fire-fighting pressurizing water pump water outlet pipe is arranged in the other water suction pit. The fire-fighting pressurizing water pump water inlet pipe is sequentially connected with a fire-fighting pressurizing water pump water outlet pipe and a fire-fighting pipe; the fire-fighting pressurizing water pump water outlet pipe is connected with a cable trench fire-fighting main pipe; the other water suction pit is connected with a stabilized pressure pump water outlet pipe through a stabilized pressure pump water inlet pipe,