Filtrate collecting device

The utility model relates to the technical field of vacuum filtration, in particular to a filtrate collecting device. The filtrate collecting device comprises a tank body, the tank body is provided with a vacuum suction port and a filtrate inlet, a transverse partition plate is arranged in the tank body and divides the tank body into an upper tank body and a lower tank body, and a valve is arranged on the transverse partition plate; the vacuum suction port is formed in the top of the upper tank body, and the filtrate inlet is formed in the side wall of the upper tank body and located below the filtrate outlet of the vacuum filter. By arranging the transverse partition plate in the tank body, the volume of a space needing to be acted by a vacuum pump in the tank body is reduced, the vacuum degree of the tank body is higher, the filtrate inlet is formed below the filtrate outlet, the initial speed of filtrate entering the tank body is increased, and the filtrate can be rapidly separated from an area with high v