The invention discloses a bag type dust collector for a stamping coke oven. A support base is arranged on an oven top base line; a fan and a dust collector are fixed on the support base; the bag typedust collector further comprises a main air tube and a plurality of air collection covers; the air collection covers are arranged right above the outer sides of two adjacent coke side small oven burners in a covering manner; one end of the main air tube is communicated with the air sucking hole of the fan and the air inlet of the dust collector; the other end of the main air tube is communicated with the air collection covers through branch air tubes; the air collection covers consist of collection sections and refraction sections which are connected with each other; spiral grooves are formedin the inner walls of the collection sections in the axis directions of the collection sections; the refraction sections take the shape of a corn; the corn tip parts of the refraction sections are communicated with the tail ends of the branch air tubes. When the bag type dust collector is used, fume diffused out from the small oven burners on the oven top base line is centrally collected through the air collection covers simultaneously, the collected fume is fed into the main air tube through the branch air tubes and is fed into a dust filter under traction of the pneumatic power of the fan, then the fume is treated, fume is avoided from escaping from the top of the oven, and environmental pollution is avoided.