Precision filter for automatic drainage of pulse dust collector

The utility model provides a precision filter for automatic drainage of a pulse dust collector, which belongs to the technical field of pulse dust collectors and comprises a filter shell, air can be input into the filter shell through a transmission groove before entering the dust collector, a heater is started at the moment, a filter screen is heated through two copper pipes, and the filter screen is heated through the transmission groove. The filter screens are used for drying moisture in the air, and the filter holes of the two filter screens are not equal in size, so that a mixture is leaked by the filter screen on the left side and is blocked by the filter screen on the right side, and then the mixture is mixed and kept in the conveying groove between the two filter screens; and then the self-sucking pump can be started and the mixture is pumped out through the pumping pipe, so that water and the mixture of the air can be filtered before the air enters the dust remover, the burden of the dust remover is