The utility model relates to industrial microwave drying equipment with a sealed side sliding door. The device mainly comprises a main body, microwave sealing side sliding door, the door comprises a door frame, a door body, a driving assembly and a microwave sealing assembly, the driving assembly comprises a linear rail, a rack mounting plate and a transmission motor, the linear rail is arranged at the top of the door frame, the door body is fixedly connected with a sliding block of the linear rail through a suspension device, the rack mounting plate is fixedly connected with the suspension device, and a gear of the transmission motor is meshed with a rack on the rack mounting plate; the microwave sealing assembly comprises guide pressing supports, a pressing device and an elastic sealingpiece, the guide pressing supports are arranged at the top and the bottom of a rack of the oven body respectively, the pressing device is arranged on the guide pressing supports, and the elastic sealing piece is arranged on the edge of the door frame. Through the microwave oven integrated sealing cavity and the side sliding door sealing structure, microwave leakage is effectively solved, and automatic drying of the sand core is achieved.