Nasal aspirator

A nasal aspirator (100), wherein the nasal aspirator (100) comprises:

• a housing assembly (10), wherein a negative pressure cavity (111) and a treatment cavity (131) are arranged in the housing assembly (10) at intervals, and the treatment cavity (131) is sequentially divided into a first cavity chamber (133) and a second cavity chamber (135) by a partition plate (15), and the first cavity chamber (133) is communicated with the second cavity chamber (135);
• a negative pressure assembly (30), wherein the negative pressure assembly (30) is arranged in the negative pressure cavity (111) and is formed with a suction pipeline (31) and a discharge pipeline (33) which are communicated with a side wall surface of the housing assembly (10);
• and
• a guide assembly (50), wherein the guide assembly (50) comprises a first guide piece (51) and a second guide piece (53), the first guide piece (51) is detachably connected with the side wall surface of the housing assembly (10) to be communicated with the suction pipeline (31) and the second cavity chamber (135);
• and the second guide piece (53) is fixedly connected to the side wall surface of the housing assembly (10) and is communicated with the discharge pipeline (33) and the first cavity chamber (133).