The invention discloses a multifunctional feeding device for livestock. The multifunctional feeding device structurally comprises a feeding trough, a fixed panel, a feeding trough cleaning device anda shell, wherein the fixed panel is fixedly arranged at the top of the shell, the fixed panel and the shell are of an integrated structure, the feeding trough cleaning device is installed in the shell, and the feeding trough is formed in the center of the fixed panel, runs through the fixed panel, and is mechanically connected with the feeding trough cleaning device. According to the multifunctional feeding device for the livestock, under the joint effect of a movable door plank control device, a water spraying control device, a movable door plank clamping block mechanism, a clamping block driving device, a manual driving device, a garbage clean-away device and a water outflow control mechanism, the feeding trough can be mechanically cleaned, labor does not need to be consumed, and the time is saved; moreover, it can be avoided that a man is attacked by the livestock when cleaning the feeding trough.