Abstract: A system for extracting and discharging fecal sludge, including: a pneumatic pressure conveyor, the pneumatic pressure conveyor including an air inlet and an air outlet; a pipe tee; a first two-position three-way valve; a second two-position three-way valve; and a plurality of connecting pipes, the pipes including an air vent pipe. The pneumatic pressure conveyor, the air inlet thereof, the air outlet thereof, the pipe tee, the second two-position three-way valve, and the first two-position three-way valve are connected via the connecting pipes to form a loop. The pipe tee is disposed close to the air inlet of the pneumatic pressure conveyor, and one port of the pipe tee not enclosed in the loop functions as an air inlet end of the pneumatic pressure conveyor.

Abstract: A system for draining fecal matter off-site, including: a sealed fecal matter disposal device, an off-site fecal matter outlet, an off-site air charging inlet, a control valve, a fecal matter transporting pipe, and an air transporting pipe. A fecal matter extraction interface is disposed on the off-site fecal matter outlet. An air charging interface is disposed on the off-site air charging inlet. The off-site fecal matter outlet is connected to a straight fecal matter outlet arranged on the sealed fecal matter disposal device via the fecal matter transporting pipe. The off-site air charging inlet is connected to an air inlet arranged on the sealed fecal matter disposal device via the air transporting pipe. The control valve is disposed on the air transporting pipe for controlling the connection or disconnection of the air transporting pipe, thereby realizing permission or refusal of off-site fecal matter extraction.