Bean product processing presser convenient to demould

A bottom plate is arranged at the upper end of a workbench, a plurality of drainage holes are formed in the bottom plate, a drainage channel is formed in the workbench, the drainage channel is communicated with the lower end of the bottom plate, the lower end of the drainage channel penetrates through the workbench, a box body with an upper opening and a lower opening is arranged at the upper end of the bottom plate, and stand columns are vertically arranged on the left side and the right side of the box body. The upper ends of the stand columns are connected through a cross beam, the stand columns are sleeved with sleeves, the left end and the right end of the box body are connected with the corresponding sleeves through connecting blocks, the connecting blocks are connected with the cross beam through first lifting assemblies, and the two first lifting assemblies drive the box body to ascend and descend at the same time. The side walls of the pressing plates are attached to the inner side wall of the box bo