The invention discloses a multifunctional knitting machine which structurally comprises an anti-knotting knitting device, a support base plate, anti-slip feet, a mounting frame, a thread roller, a display screen, a control box, a control panel, an indicator light and connecting columns. The right side of the anti-knotting knitting device is attached to the left surface of the control box, and thelower end of the anti-knotting knitting device is fixedly connected with the upper one sixth of the right side of the support base plate by means of electric welding. The anti-knotting knitting deviceis formed by a feeding mechanism, an ejecting device, a rotating mechanism, a grinding device, a parastat, a collecting device and a braking mechanism, yarn can be ground flat and straightened when discharged from the knitting machine and can enter the thread roller accurately, and influence usage by knotting of the yarn is avoided; meanwhile, cotton silk generated from filaments during the mechanical process can be effectively collected, the cotton silk can be treated with static electricity through the parastat during collection, and the fact that the knitting machine is stuck by the staticelectricity is avoided.