The utility model provides a mash feed divider for a double-coarse-tower alcohol distillation process device, comprising a barrel (1), an end enclosure (2), an air exhausting pipe (3), a material discharging pipe I (4) and a material discharging pipe II (5), wherein the barrel (1) is internally provided with a cavity and the barrel (1) is arranged between a degassing tower and a negative-pressure coarse distillation tower; the upper end of the barrel (1) is arranged to be communicated with the degassing tower and the lower end of the barrel is arranged to be communicated with the negative-pressure coarse distillation tower; the end enclosure (2) is arranged in the barrel (1) and the end enclosure (2) is provided with a concave part; the air exhausting pipe (3) is arranged on the end enclosure (2) and the negative-pressure coarse distillation tower is arranged to be communicated with the degassing tower through the air exhausting pipe (3); the material discharging pipe II (5) is arranged on the end enclosure (2) and the degassing tower is arranged to be communicated with a positive-pressure coarse distillation tower through the material discharging pipe II (5); and the material discharging pipe I (4) is arranged on the barrel (1) and the degassing tower is arranged to be communicated with the negative-pressure coarse distillation tower through the material discharging pipe I (4). Therefore, the fermented mature mash is not easy to deposit and the phenomenon of blocking a pipeline is prevented.