Portable multifunctional patient bag

The invention discloses a portable multifunctional patient bag, and relates to the technical field of medical care, the portable multifunctional patient bag comprises a bag body, a telescopic part is arranged on the inner side of the bag body, a zipper is arranged on the surface of the bag body and located on the outer side of the telescopic part, and a hole is formed in the bottom of the telescopic part. When the amount of urine or other drainage liquid is large, the zipper on the two sides of the hole can be unzipped by pulling the pull head, so that the internal space of the bag body can be expanded through the telescopic part, more urine or drainage liquid can be stored, and a urine bag or a drainage bag can be placed in the bag body; the bottom end of the liquid discharge valve at the bottom of the urine bag or the drainage bag penetrates through the hole and extends to the position below the bag body, when liquid in the urine bag or the drainage bag needs to be discharged, the liquid discharge valve at