Shengji integrated stove fan is a double-layer multi-wing centrifugal fan impeller, which has obtained patented technology. This patent optimizes the design structure of fan impeller, avoids the formation of unreasonable flow channels between blades, inhibits the separation loss caused by oblique angle, improves the stability of blades, increases the effective flow area, reduces the noise of multi-blade centrifugal fan, and makes the impeller more durable. During regular inspection and maintenance, it can be taken out from the upper part of the machine head, which is more convenient for disassembly and assembly. The smoke collection room is imported ultra-micro nano-coating, which is oil-proof and scratch-proof, environmentally friendly and healthy. If there is a small amount of dirt, it can be removed by gently wiping, which is simple and convenient and greatly improves the cleaning efficiency! Magnetic coagulation plate is easier to disassemble than snap operation, and it can be disassembled in one second, which is more convenient for cleaning and maintenance. However, frequent biting operations are easy to cause the biting place to break and fall off, and it is difficult to clean it without dead ends after long-term use.