High-speed booster fan module

A high-speed booster fan module, comprising an air duct (3), and an air inlet (31) and an air outlet (32) which are communicated to the air duct (3), wherein an air-driving fan blade group (4) is arranged in the air duct (3);

• after driving air at the air inlet (31) to flow into the air duct (3), the air-driving fan blade group (4) blows the air towards the air outlet (32);
• a booster fan is arranged at the air outlet (32);
• an airflow direction guiding member(2) is arranged on one side of the booster fan away from the air-driving fan blade group (4);
• a rectifying and boosting hood (1) is arranged on one side of the airflow direction guiding member(2) away from the booster fan;
• the booster fan boosts the air flow output by the air-driving fan blade group (4);
• the airflow direction guiding member(2) guides the air flow output from the booster fan, so that the air flow is blown out in a direction parallel to an axial direction;
• and the rectifying and boosting hood (1) outwards blows the air flow output by the airflow direction guiding member(2) after performing boosting and turbulence removal on the air flow.