A horizontal type scroll compressor includes a motor housing with a driving motor therein, a main scroll coupled to one side of the motor housing and having a fixed wrap for forming compression chambers, an orbiting scroll having an orbiting wrap and coupled to a crankshaft inserted through the main scroll, the orbiting scroll forming a first compression chamber and a second compression chamber on an outer surface and an inner surface of the orbiting wrap while performing an orbiting motion, and a front housing hermetically coupled to the main scroll. With the configuration, the number of components and assembly parts may be reduced, resulting in reduction of fabricating costs. Also, an inclination of the orbiting scroll can be prevented as the crankshaft is inserted through the fixed wrap and the orbiting wrap.