Hidden universal exhaust hood with purification function

The utility model discloses a hidden universal exhaust hood with a purification function. The hidden universal exhaust hood comprises a containing groove, a flange plate, a U-shaped inserting groove, a sealing plate and a pull lug. According to the hidden universal exhaust hood with the purification function, a notch is formed in a table plate, a containing groove matched with the notch is formed in the notch, a flange plate is arranged at the top of the containing groove, the flange plate is fixedly connected with the table plate, the flange plate is embedded in the table plate, a U-shaped inserting groove is formed in the top face of the flange plate, a sealing plate matched with the U-shaped inserting groove is arranged in the U-shaped inserting groove, a pull lug is arranged on the sealing plate, and the pull lug is fixedly connected with the table plate. The sealing plate is limited by friction of the flange plate, an air exhaust hood assembly is arranged in the containing groove and comprises a first pi