IVC independent air supply isolation device

The invention discloses an IVC independent air supply isolation device, which comprises a feeding cage, a placing frame and an independent air supply device, wherein the feeding cage is used for feeding animals; the placing frame is used for placing the feeding cage; the independent air supply device comprises a conveying pipeline and an air supply fan, wherein the conveying pipeline comprises anair inlet pipe, the air supply fan is provided with a first air outlet, and the air inlet pipe is communicated with the first air outlet; the air inlet pipe is internally provided with a first air vent; a cover plate is arranged on the air inlet pipe; a first vent pipe is arranged on the feeding cage, a first groove is arranged on the air inlet pipe, a first convex block is arranged on the feedingcage, and the air inlet pipe is communicated with the feeding cage after the first convex block is inserted into the first groove; the air inlet pipe is provided with an adjusting assembly which comprises an electromagnetic v