The animal pulmonary sprayer is a drug nebulizer specially designed for the pulmonary administration of small animals. The nebulizer consists of a high-pressure-resistant syringe and a spray needle. When using, insert the spray needle into the trachea through the mouth, and push the syringe by hand to complete the pulmonary drug delivery operation. The pulmonary atomizing drug delivery device can better achieve intratracheal dosing, and the drug is not wasted.