Patient excrement drainage device with multi-loop function

The patient excrement drainage device with the multi-loop function comprises a liquid collecting bottle and a second loop pipe, the top of a bottle cap of the liquid collecting bottle is detachably connected with a first loop pipe, one end of the second loop pipe is fixedly connected with one end of the first loop pipe, and an end hole communicated with the outside is formed in the end of the second loop pipe. The middle of the second loop pipe is connected with a branch pipe, the branch pipe penetrates through the first loop pipe and is connected with a three-way valve, one connecting end of the three-way valve is provided with a multipurpose connecting nozzle, and the other connecting end of the three-way valve is provided with a negative pressure connecting nozzle. Flexible selection can be carried out according to the actual situation of a diarrhea patient, when the patient has much pneumatosis, a negative pressure mode can be used for drainage of excrement effusion and pneumatosis, when the patient has l