Negative pressure booster

The utility model provides a negative-pressure pressurizing fluid director, which comprises a pipe body provided with an outlet pipe; the pipe cover is locked at the opening of the pipe body, the pipe cover is provided with an inclined plane, a flow deflector and an air inlet pipe, the air inlet pipe penetrates through the inclined plane, the flow deflector covers the through opening of the inclined plane, and any end of the flow deflector is locked on the inclined plane; therefore, the negative pressure fluid director can be used on an automobile engine, and the purpose of enhancing horsepower can be effectively achieved when air enters a combustion chamber of the engine through pressurization of the negative pressure fluid director.