Nasal detector

The invention relates to a nasal detector, which comprises a liquid collection bottle, a spray bottle and a nozzle head; a liquid collection cavity and an installation cavity used for containing test paper are formed in the liquid collection bottle; the installation cavity is communicated with the liquid collection cavity; the nozzle head comprises a body part and a head part connected with the body part; the body part is installed at a bottle opening of the liquid collection bottle; a liquid collection opening is formed in the body part; the liquid collection opening is communicated with the liquid collection cavity; and the head part is provided with a spraying channel which is communicated with the spray bottle. The spray bottle is pressed, so that diluent in the spray bottle is sprayed into the deep part of the nasal cavity through the spraying channel of the head part; the nasal cavity is flushed; the sampling process is completed; liquid with a sample flows out of the nasal cavity, flows back into the l