This is a Semar statue at the passageway that connects Jalan Purnawarman and Jalan Merdeka through the Merdeka Food Court and Bakery.
This is what Wikipedia says about Semar:
Semar is a character in Javanese mythology who frequently appears in wayang shadow plays. He is one of the punokawan (clowns), but is in fact divine and very wise. He is the dhanyang (guardian spirit) of Java, and is regarded by some as the most sacred figure of the kotak (wayang set). He is said to be the god Sang Hyang Ismaya in human form. The name Semar is said to derive from the Javanese word samar ("dim, obscure, mysterious"). He is often referred to with the honorific, "Kyai Lurah Semar" ("the venerable chief").
You can read more about it here.
You may have noticed that this photo is not of crisp and clear quality. That's because I took it with a toy camera on my cell phone. I lost (again) the pocket 12 MP pocket digital camera that I used to carry anywhere, and so for the the time being I am resorting to my mobile phone camera to take everyday pictures.