The invention discloses an intelligent efficient steady-state one-time heat exchange type waste heat recycling machine. The intelligent efficient steady-state one-time heat exchange type waste heat recycling machine comprises a furnace body, wherein brackets are fixed connected to the upper and lower right sides of the inner wall of the furnace body, adjusting mechanisms are mounted on right sidesof the two brackets, each adjusting mechanism comprises a short plate, a vertical plate, a first round plate, a triangular plate, a threaded rod and a grip, front sides of the two short plates are rotationally connected with the right sides of the rear end surfaces of the two brackets respectively, and the right sides of the two short plates are fixedly connected with the left sides of the vertical plates respectively. According to the intelligent efficient steady-state one-time heat exchange type waste heat recycling machine, the adjusting mechanisms control the vertical plates to rotate toadjust size of a flue gas outlet, flue gas is prevented from flowing out directly, and heat utilization is guaranteed; second springs in a heat transfer mechanism protect square blocks, so that shaking of heat transfer pipes is weakened, the heat transfer pipes are prevented from being damaged, the service life is prolonged, a filter screen in a fixing mechanism filters the flue gas, so that the heat transfer pipes are prevented from getting dirty, troubles in cleaning are omitted, normal use is ensured, practicability is improved, and popularization is facilitated.