The invention relates to the technical field of breeding equipment, and specifically relates to a multifunctional
dairy cattle barn. The
dairy cattle barn comprises a barn body, the bottom board of the barn body is provided with a
defecation port, a urinal is arranged below the bottom board, the top of the barn body is open, the top of the barn body is provided with a vertical support, the top end of the support is provided with a water tank, the bottom of the water tank is provided with a vertical
water pipe, the bottom of the
water pipe extends into the barn body, the
water pipe is provided with a tap. The barn body is also provided with a water purifier, and the water inlet
pipe of the water purifier is connected with the water tank, and the water outlet
pipe of the water purifier is in the barn body. The end of the water outlet
pipe is provided with a
shower head. The
dairy cattle barn makes full use of rainwater, and after rainwater is collected, the rainwater is directly used to flush faeces of the barn body, so as to keep
sanitation and
hygiene of the barn body. The rainwater is purified by the water purifier, and the purified rainwater is used as water for bath of dairy cattle, thereby greatly saving domestic water of the dairy cattle, saving
water cost, and saving breeding cost.