A filtrate discharge container comprising: a bottle (21) of outer layer that includes a crushable deformable body and a mouth portion provided at an upper end of the body； an inner layer bag (22) provided in the outer layer bottle (21) and having an opening connected to the mouth portion of the outer layer bottle (21)； and a mouth cover (3) fixed to the mouth portion of the outer layer bottle (21)； the outer layer bottle (21) having an inlet hole through which air is introduced between the outer layer bottle (21) and the inner dad's bag (22)； the mouth cover (3) having an exit passage through which a liquid content contained in the inner layer bag (22) is discharged from the inner layer bag (22)； the exit passage of a filter (33) being provided； The filtrate discharge container further comprising: a coupling portion (31c) provided on an upstream side of the filter (33) in the outlet passage of the mouth cover (3)； characterized in that a cap (34) coupled with the coupling portion (31c) such that the cap (34) can be decoupled from the decoupling portion (31c) by an internal pressure of the increased inner layer bag (22) by crushing deformation of the body of the outer layer bottle (21)； wherein the exit passage is closed with the plug (34) coupled with the coupling portion (31a) and, after the plug (34) is decoupled from the coupling portion (31c), a fluid communication is established between the interior of the inner layer bag (22) and the filter (33) wherein the container further comprises an elastic support member (35) that pushes the cap (34) against the coupling portion (31c).Un contenedor de descarga de filtrado que comprende: una botella (21) de capa exterior que incluye un cuerpo deformable por estrujado y una porción de boca provista en un extremo superior del cuerpo； una bolsa (22) de capa interior provista en la botella (21) de capa exterior y que tiene una abertura conectada a la porción de boca de la botella (21) de capa exterior； y una tapa (3) de boca
