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Broad emission-line outflows of active galactic nuclei (AGNs) have beenproposed for many years but are very difficult to quantitatively study becauseof the coexistence of the gravitationally-bound and outflow emission. Wepresent detailed analysis of a heavily reddened quasar, SDSSJ000610.67+121501.2, whose normal ultraviolet (UV) broad emission lines (BELs)are heavily suppressed by the Dusty Torus as a natural "Coronagraph", thus theblueshifted BELs (BBELs) can be reliably measured. The physical properties ofthe emission-line outflows are derived as follows: ionization parameter $U \sim10^{-0.5}$, column density $N_{\rm H}\sim 10^{22.0}$ cm$^{-2}$, coveringfraction of $\sim 0.1$ and upper limit density of $n_{\rm H}\sim 10^{5.8}$cm$^{-3}$. The outflow gases are located at least 41 pc away from the centralengine, which suggests that they have expanded to the scale of the dust torusor beyond. Besides, Lya shows a narrow symmetric component, to our surprise,which is undetected in any other lines. After inspecting the narrowemission-line region and the starforming region as the origin of the Lya narrowline, we propose the end-result of outflows, diffusing gases in the largerregion, acts as the screen of Lya photons. Future high spatial resolutionspectrometry and/or spectropolarimetric observation are needed to make a finalclarification.

Ultraviolet and Optical Emission-line Outflows in the Heavily Obscured Quasar SDSS J000610.67+121501.2: At the Scale of the Dusty Torus and Beyond