The utility model discloses a casting machine for casting special materials. The casting machine comprises a transmission device, a drive chain wheel device, a driven wheel device, a driven wheel bracket, a pouring spout, an iron removal wheel assembly, a vibration beating device, a residual iron collecting device, a fixed chute, a chain belt device, a roller wheel device, a roller wheel base, a steel structure frame and a casting mould, wherein the driven wheel bracket is mounted on a ground base; the driven wheel device is assembled together with the driven wheel bracket; the transmission device, the drive chain wheel device, the pouring spout, the vibration beating device, the residual iron collecting device, the fixed chute and the roller wheel base are all mounted on the steel structure frame; the iron removal wheel assembly and the roller wheel device are mounted on the roller wheel base; the casting mould is linked with the chain belt device; the drive chain wheel device, the driven wheel device and the roller wheel device are used for supporting the chain belt device. According to the casting machine, an existing casting forming process of alloy iron blocks and nonmetal materials is changed, so that the production capability is improved, the service life is prolonged, and the finished product rate is remarkably increased.