Title: Dissecting Luminous Infrared Galaxies through Multi-wavelength integral field spectroscopy Abstract: This contribution presents some of the recent results from an on-going multiwavelength survey of low-z luminous and ultraluminous infrared galaxies using near-IR and optical VLT integral field spectroscopy (VIMOS and SINFONI), ALMA sub-arcsec molecular gas spectroscopy and mid- IR imaging. Emphasis will be given to different topics including (i) statistical properties of AGN and starburst driven ionized gas outflows, (2i) the multiphase nature of gasseous outflows, (3i) the identification of starburst and AGNs based on a near-IR BPT diagnostic diagram, and (4i) sub-kpc characterization of luminous star-forming clumps, including KS laws.