Animal feeding device

The invention discloses an animal feeding device. The animal feeding device comprises a rearing cage, a placement rack and an independent air supply device, wherein the independent air supply device comprises an air supply device and a delivery pipeline, and a frame is arranged on the placement rack and comprises a moving rack and a fixed rack; a plurality of driving assemblies for enabling the moving rack to move are arranged on the placement rack; a sliding groove is formed in the placement rack; first sliders sliding in the sliding groove are arranged on the moving rack, and a rotating block is arranged on the placement rack; each driving assembly comprises an outer driving rod, an inner driving rod and a first spring, the inner driving rod and the outer driving rod are in sliding connection, a first annular groove is formed in the outer driving rod, the inner driving rod and the first spring are both located in the first annular groove, one end of the first spring is fixedly connected with the bottom of t