Deodorizing exhaust device for toilet

A deodorization exhaust device for a toilet comprises a urinal, an annular air pipe, an exhaust connector, an air duct, an exhaust fan and a connecting pipe. A connector mounting hole is formed in the upper end of the urinal; the annular air pipe is fixedly installed at the upper end of the urinal inner cavity and matched with the edge contour of the upper end of the urinal inner cavity. The exhaust connector is arranged in a connector mounting hole of the urinal, the front end of the exhaust connector is detachably connected to an air outlet of the annular air pipe, and the rear end of the exhaust connector extends out of the urinal; an air inlet and an air outlet are respectively formed in two ends of the air duct; the exhaust fan is fixedly mounted in the air duct; and one end of the connecting pipe is connected with the rear end of the exhaust joint while the other end is communicated with the air inlet of the air duct. The toilet bowl has the advantages that the toilet bowl does not need to be greatly ch