Anti-overflow device for top tank of atomizer

The utility model provides an atomizer top tank anti-overflow device which comprises a tank body communicated with a slurry supply tank through a slurry supply pipe and communicated with an atomizer through a slurry spraying pipe. The first overflow port is formed in the side wall of the tank body in a penetrating manner; the upstream end of the first return pipe is communicated with the first overflow port, the downstream end of the first return pipe is used for being communicated with a slurry supply tank, and the first return pipe extends from the first overflow port in the obliquely downward direction; the detection unit is used for detecting the overflow flow of the slurry at the first overflow port; and the flushing pipe is communicated with the first return pipe. According to the top tank, the backflow speed of slurry can be increased, the scaling probability of the slurry in the pipeline is reduced, the pipeline is kept smooth, the pipeline is prevented from being blocked, and therefore the risk that