Embodiments of the present application disclose an image dehazing method and an image acquiring apparatus implementing image dehazing. In the embodiments of the present application, an RGBIR sensor can be adopted to generate a first RGBIR image and a second RGBIR image, such that the generated images are color images and contain infrared information; thus a finally generated image thus has a good dehazing effect; in addition, the image acquiring apparatus adjusts the first exposure time length and the second exposure time length based on the first RGBIR image and the second RGBIR image generated during each exposure, causing the RGB components and the IR component in the image to be balanced, which guarantees the display effect of the finally generated dehazed image.