Livestock and poultry pathological sample sampler

The invention discloses a livestock and poultry pathological sample sampler. The livestock and poultry pathological sample sampler comprises a first barrel body, one side wall of the first barrel bodyis fixedly connected with a collecting barrel, the inner bottom face of a box body is fixedly connected with a battery, a second rotating block is embedded in the side wall of the first barrel body,one side wall of the second rotating block is fixedly connected with a square rod, a first disc fixedly sleeves the square rod and arranged on the first barrel body in an attached mode, two third grooves are oppositely formed in a first through hole, the model of a negative pressure machine is J23-25, the model of a three-phase asynchronous motor is Y132M-4, and the square rod is made of an alloysteel material. The livestock and poultry pathological sample sampler is diverse in function and high in practicability, multiple times of sampling can be conducted, temporary storage of samples is facilitated while the number