Positive-pressure double-nozzle nasal cavity cleaner featuring double pressure protection and use method thereof

A positive-pressure double-nozzle nasal cavity cleaner featuring double pressure protection, comprising:

• a shell having a lower shell,
• a cleaning liquid container,
• a nose washing end, and
• a waste liquid recovery container,
• wherein the positive-pressure double-nozzle nasal cavity cleaner further comprises a core module, a middle of the core module is provided with an air pump, a cleaning liquid inlet is provided at a first side of the air pump, a waste liquid inlet is provided at a reverse side, relative to the first side, of the air pump,
• the lower shell has a U-shaped structure;
• a cleaning liquid diversion pipe is provided at one side of the U-shaped structure, and a waste liquid recovery pipe is provided at an other side of the U-shaped structure;
• the cleaning liquid diversion pipe communicates with the cleaning liquid inlet and the cleaning liquid container, and the waste liquid recovery pipe communicates with the waste liquid inlet and the waste liquid recovery container;
• the air pump extends beneath the cleaning liquid diversion pipe into an interior of the U-shaped structure;
• the air pump provides a positive pressure source, the positive pressure source drives a cleaning liquid to flow by increasing air pressure in the cleaning liquid container, an automatic pressure relief mechanism is arranged in an internal passage to maintain the air pressure, the automatic pressure relief mechanism comprises a mechanical pressure relief part and an electronic feedback part, the electronic feedback part and a driving part in the positive pressure source are controlled by a control module, and the control module stabilizes hydraulic pressure in a liquid passage at a preset value,
• the nose washing end is rotatable, such that inflow and outflow directions of the cleaning liquid inside nostrils are capable of being changed.