The continuous multilayer dryer is a kind of drying equipment commonly used in the drying process of the food industry. As the name implies, its core function is to dry the product moisture, so that the product has a better taste and a longer shelf life. This series of ovens can be divided into electric type, fuel gas type, steam type, etc. according to energy options; According to the number of layers, there are 3 to 7 layers of various specifications; The dryer uses food grade stainless steel as the main material, and is equipped with hot air circulation, automatic moisture removal and other functions to greatly improve the drying efficiency and save energy consumption. The production process does not require manual operation, and automatic and continuous production can be realized after the working temperature and operating speed are set; Compared with traditional batch drying or natural air drying, it has significant advantages in production automation, land saving, food safety, etc.