The invention discloses a dry powder recycling machine. The dry powder recycling machine comprises a work table and a recycling cylinder; the recycling cylinder is provided with a jet hole and comprises a filter cylinder and a cylinder cover, the bottom of the filter cylinder is conical, a conical opening of the filter cylinder is a powder outlet, and a butterfly valve is arranged on the conical opening; a negative pressure pipe is arranged on the cylinder cover and is connected to an external negative pressure generator; a motor is installed in the cylinder cover, an output shaft of the motor is connected to an installing plate through a connecting pipe, and a filter element connecting rod is installed below the installing plate; a filter element is installed on the filter element connecting rod; a flow guide cover is arranged below a cylinder body lower flange; a ventilation hole is formed in the upper part of the connecting pipe and communicates with the cylinder cover and the flow guide cover. According to the machine, the motor drives the filter element to rotate, dry powder on the filter element can be cleared, and the service life of equipment can be prolonged; the flow guide cover is arranged additionally for improving the recycling efficiency of the dry powder; whether recycled fire extinguishers are pressurized are distinguished and treated, the energy is saved, and the work efficiency is improved.