The invention relates to a multifunctional feeder for poultry, which is provided with a framework, a triangular bottom plate and a triangular top plate, the triangular top plate is over the triangular bottom plate, the triangular top plate and the triangular bottom plate are spaced and fixed on the framework, side plates are arranged at both ends of the framework, a storage space is defined by the side plates, the triangular bottom plate and the triangular top plate, cribs are arranged at the slope toes of both sides of the triangular bottom plate, feed pipes which are connected with a pneumatic feeding machine are arranged on the side plates, pressure relief pipes are arranged on the triangular top plate, the pressure relief pipes are connected with dust-collecting cloth bags, filters are arranged on the orifices of the pressure relief pipes, and the side slopes of the triangular top plate and the triangular bottom plate are respectively rolled on outer crib ribs and inner crib ribs. The triangular design of the multifunctional feeder for poultry ensures that fowls cannot discharge feces and urine into the cribs, thus preventing feed pollution and reducing disease propagation, feeding is automatic, feed is quantitatively supplied at regular time, feeding is scientific, feed waste is prevented, workers do not need to get into a poultry house to supply feed, workload is reduced, labor intensity is decreased, working efficiency is multipled, and a novel structure, low fabrication and installation cost and easiness in popularization are also the remarkable characteristics of the multifunctional feeder for poultry.