Dust-free filtering device of automatic oven

The invention discloses a dust-free filtering device of an automatic oven, and relates to the technical field of oven dust removal. Comprising an oven body, dust collection equipment is fixed to the top of the oven body, the output end of the dust collection equipment is arranged in the oven body, the output end of the dust collection equipment penetrates through an impurity removal bin and is slidably installed on the impurity removal bin, heating equipment is fixed to the top of the impurity removal bin, and a groove is formed in the impurity removal bin; a groove is formed in the impurity removal bin, a baffle is installed on the groove formed in the impurity removal bin in a hinged mode, a handle is fixed to the left side of the baffle, a sealing rubber strip is fixed to the bottom of the baffle and makes contact with the bottom of the impurity removal bin, the impurity removal bin is fixedly installed on the oven, and filtering equipment used for reducing carbon dioxide is arranged in the impurity remova